Astrolabio

Ivnnou Alejandrvw to Filopnou per tw
to strolbou xrsevw ka kataskeuw ka
tn n at katagegrammnvn, dhlad t
kaston shmanei.

    Tn n t strolb tw pifaneaw tw sfaraw j-
    plvsin, ka tn n at katagegrammnvn tw ataw, tn
    te xrean ato ew psa te ka poa kaysthke xrsimow,
    w n ow te safw kyenai peirsomai, dh mn
    kanw Ammvn filosf, t mn didaskl, spou-
    dasmnhn, pleonow d mvw deomnhn safhneaw, w n ka
    tow m tata pepaideumnoiw elhptow gnoito. toto
    gr me poien tn sunyvn protrecn tinew. prton d,
    t tn n at katagegrammnvn stn kaston, romen.
    Per tw n t pipd katagrafw, n
    doptra ketai, ka tnow kaston tn n to-
    t katagegrammnvn st dhlvtikn.
    A tonun n t pipd, n doptra ketai, do
    eyeai kat t mson lllaw tmnousai t meshmbrin
    ka rzonti nalogosin, n mn nvyen p to krkou
    katiosa, di' o t rganon rtmen, naloge t kay' ka-
    ston klma meshmbrin, d tra, tathn dixotomosa
    prw ryw, t rzonti naloge. p d tathw tw t
    rzonti nalogoshw mikklion sthke, dimetron xon a-
    tn tathn tn grammn: per naloge t pr gn mi-
    sfaire to orano. toto d t mikklion dxa tmnei
    tra tn grammn, p to krkou katiosa, n fa-
    men t meshmbrin nalogen. d tom sti kat t nv
    praw tw grammw, t prw t krk. kteron d tn par'
    ktera tetarthmorvn dirhtai ew nenkonta moraw, f'
    n t tw diptraw pptei moirognvmnion: di' n (l. o) kr-
    nomen t to lou llou tinw strow p to rzon-
    tow jarma, psaw moraw kay' ksthn ran perrtai to
    natoliko rzontow to dutiko. shmanei d mn ne-
    nhkost mora t kat korufn f' ksthw oksevw sh-
    meon, d prth t prw at rzonti, t natolikn,
    t dutikn, w to rgnou xrsiw prontaw mw di-
    djei. o mn psi d tow strolboiw kteron tn
    do tetarthmorvn ew tw nenkonta dirhtai moraw, ll
    t teron. rke gr mnon t teron, per n tx, prw
    t diopteein. di' katrou gr sti gnnai pson k to
    dutiko, k to natoliko rzontow jrtai liow
    terw tiw str. ll' na xvmen =&dvw rtntew katr&
    xeir t rganon diopteein, totou xrin n tisin mftera
    t tetarthmria kataggraptai.
    Per tw n tow tumpnoiw katagrafw, n ow
    t klmata kataggraptai, ka tni tn kata-
    gegrammnvn kaston naloge ka psvn st
    moirn to zvdiako ljvsiw.
    H mn on to pipdou, n doptra ketai, kata-
    graf toton diattaktai tn trpon. d tn tumpnvn,
    n ow t klmata kataggraptai, otvw xei. n kst
    mn on pipd tumpnou do plin eyea esin movw
    lllaw tmnousai, n mn tra, w p to krkou p
    t ktv dikousa, plin t meshmbrin naloge, d loi-
    p t rzonti. a ata gr esi taw n t ntikeimn
    mrei, n doptra ketai. di ka motagw atw
    kenaiw farmzein desei. es d ka kkloi katage-
    grammnoi p t nv mrow to tumpnou, t prw
    t rtmati, n mn tow monomoiriaoiw strolboiw ne-
    nkonta, n d tow dimoiriaoiw pnte ka tessarkonta,
    sper on n tow trimoiriaoiw trikonta, w n tow
    katagrfousi dokoh. totvn mn jvyen ka mezvn
    naloge t rzonti, ka, ege n dunatn ktenai tn
    kklon, frmozen n t temnos, tn meshmbrinn e-
    ye&: pe on toto dnaton, ektvw loipn, son ato
    kurtoumnou kat t mson tw eyeaw popptei disthma,
    tosoton katrvyen tn krvn atw perrthtai. ll'
    mn eyea w n pipd diorzei t pr gn misfa-
    rion to p gn, d kklow w n sfar&. o d ntw
    te ka periexmenoi kkloi parllhlo esi t rzonti,
    diesttew lllvn p' ato to rzontow p tn nv ka
    nalogonta t pr gn, n mn tow monomoiriaoiw stro-
    lboiw, mor& mi, n d tow dimoiriaoiw ka trimoiriaoiw,
    do trisn, ste tmnesyai p' atn t pr gn mi-
    sfarion stefanoeidw, oan xousi ysin o parllhloi k-
    kloi n t muloeide to pantw ysei: nyen e o ntw
    ka to rzontow chlteroi smikrtero esin j ngkhw,
    te d lttona to pr gn misfairou perifreian
    potemnmenoi. grfontai d n t sfar& o erhmnoi
    kkloi, ow nalogosin o n t rgn, kntr mn, t
    kay' ksthn okhsin kat korufn shme, diastmati d,
    mn rzvn, t p to kat korufn dikonti p t
    per tw to pantw diamtrou, o d jw e t dia-
    stmati totou, prosafairontvn mn man moran, w
    p tn monomoiriavn strolbvn, do trew, w
    p tn dimoiriavn trimoiriavn. dlon d ti nen-
    konta moirn ntow totou to diastmatow, tetarthmo-
    rou gr perifreian xei mnhn, mxri tosotou gne-
    tai faresiw, xriw o t disthma moiriaon p to
    kat korufn gnhtai, w p tn monomoiriavn, do
    pleinvn, w p tn loipn. t mn on metaj shmeon
    tn kklvn, n piggraptai nenhkost mora, nalo-
    ge t kat korufn ksthw oksevw, ste t shmeon
    toto t at dnasyai t prw t prati t nv tw
    grammw tw n t tr tumpn, n doptra ketai,
    t prw at t rtmati. katr gr atw riymw
    tn q moirn piketai. totouw d tow kklouw me-
    shmbrinw dxa tmnei, tini tn grammn nalogen fa-
    men tn p to krkou, di' atn tn kklvn katiosan,
    w enai t mn rister mikklia, ntiprospvw mn to
    rgnou keimnou, t natolik, ow ka natol piggraptai,
    n ptetai liow tn xyvn (l. plnvn) strvn kastow
    p natolw vw meshmbraw kinomenow, llote llvw (l. l-
    lou): t d deji dutik, ow plin piggraptai dsiw, n p
    meshmbraw vw dsevw fermenow ptetai. dlon d ti di
    tn to rgnou braxthta o pntew esn o kkloi tleioi,
    ll' o jvyen ka mezonew ka tw perimtrou to tump-
    nou perekpptontew mitelew. piketai d ka tow k-
    kloiw riymw atn p prtou mxriw nenhkosto. to-
    sotvn gr sti moirn, w fhn, t p to rzontow
    mxri to kat korufn disthma. ti d ka toto dlon
    ginsyv, w rx tw pariymsevw p to rzontow
    gnetai, tn atn riymn ggegrammnvn kay' kteron
    atn mikklion, t te natolikn ka t dutikn, w p
    tn jvyen ka miteln: p gr tn ntw ka televn
    kat tn to meshmbrino grammn riymw tn kklvn
    ttaktai. safw d omai, w p tn dimoiriavn ka tri-
    moiriavn strolbvn t metaj tn kklvn disthma t-
    mnetai ew tow paraleleimmnouw. otoi d o kkloi t
    at dnantai taw n t tetarthmor to pipdou, n
    doptra ketai, gegrammnaiw moraiw, per n tn r-
    xn dieilfamen. t mn on mikklion to tumpnou, n
    o erhmnoi kkloi kategrfyhsan, naloge t pr
    gn misfair: t d loipn t p gn: per dirhtai ew
    ib tmmata kat tn tn ib rn riymn, w n ka-
    tr misfair, t te pr gn ka t p gn, ginme-
    now liow poietai. piketai d ka taw grammaw ta-
    taiw tn rn riymw, tw prthw raw p to duti-
    ko mrouw rxomnhw, di' n romen prontew atan. ti
    d ka teroi trew kkloi es katagegrammnoi p tn e-
    rhmnvn paralllvn kklvn, tmnontew atow mn, lllouw
    d perixontew. n mn ntw t yerin tropik nalo-
    ge. periagomnhw mn on tw rxnhw, cei tn prthn
    moran to karknou, n tn yerinn tropn poietai
    liow, tn kklon toton grfousan. yen mezon mn stin
    ato t pr gn mrow: toto d sti t di tn paralllvn
    kklvn fermenon: latton d t p gn, toutsti (add. t)
    di to loipo mrouw to tumpnou, n a riaai gram-
    ma tetupvmnai esn, per ka naloge t p gn, w
    erkamen, misfair. d totou deterow ka prosexw
    perixvn atn kklow t shmerin stn nlogow: yen
    t do shmerin shmea, te to krio rx ka to zu-
    go, toton dirxontai, ka stin ato mftera t mik-
    klia sa, t te di tn paralllvn gegrammnon, per st
    t pr gn, ka t di tn riavn grammn, per t p
    gn dhlo. totvn tn do kklvn t p gn mna e-
    sn n tisi tn rgnvn tetupvmna mikklia. noontai d
    t loip, di tn paralllvn felonta fresyai, di t
    m tw katagrafw tn paralllvn p totvn tmnesyai.
    d trtow ka mfotrouw perixvn t xeimerin tropik
    sstoixw stin: yen to agokervw rx, kay' n
    xeimerin trop gnetai, toton dirxetai. ka di toto
    t mn pr gn to kklou totou mrion, toutsti t di
    tn paralllvn gegrammnon, lattn sti, t d p gn,
    t di tn riavn dhlonti grammn, mezon [tn trin
    kklvn]. totvn d tn trin kklvn, to yerino tropi-
    ko fhm ka shmerino ka xeimerino, prtow tn pa-
    ralllvn diorzei t pr gn kstou tmma ka t p
    gn. peidper ka nalogen atn famen t rzonti: p
    to tropiko xeimerino vw to yerino tropiko, st t
    pltow to zvdiako moirn mz, lept prta mh ka de-
    tera m. sti d t p to xeimerino tropiko mxri to yeri-
    no disthma moraw mh, w k tw tn paralllvn pi-
    grafw sti gnnai. fsthke gr p mn t breia to
    shmerino yerinw moraw kd, p d t ntia xeime-
    rinw traw moraw kd. tn gr rxnhn rmsaw f'
    ton tn klimtvn ka shmeivsmenow tn parllhlon, o
    to agokervw kat tn meshmbrinn ptetai rx, ka
    plin deteron, o to krio ka to zugo ptontai
    rxa, ka trton, o to karknou ptetai rx, ka
    riymsaw tow metaj paralllouw, erseiw p mn agoke-
    rvw vw krio ka zugo paralllouw kd, p d krio ka
    zugo vw karknou trouw kd: w enai t p agoke-
    rvw vw karknou moirn mh: per disthma to zv-
    diako ljvsiw pxei. piggraptai d ka t klma,
    kay' ggonen kst pipd katagraf, ka svn stn
    megsth mra shmerinn rn n ken t kl-
    mati, ka psaw fsthke moraw t prokemenon klma
    to shmerino. tw atw dhlonti ka breiow plow jr-
    tai to rzontow, ka ntiow p gn fsthke. dlon
    gr, ti son fsthken ksth okhsiw to shmerino, to-
    soton ka breiow plow jaretai to rzontow, ka
    ntiow p gn gnetai. n tisi d strolboiw, ka mlista
    n tow monomoiriaoiw, ka at t ppedon, n doptra
    ketai, kay' n ti tn klimtvn st katagegrammnon. ti-
    nn d ka jvyen tuow (l. jvyen tus) ew tj dirhtai
    moraw.
    Per tn n t rxn katagegrammnvn.
    Per mn on tn tumpnvn ka t boletai tn n
    atow katagegrammnvn kaston, tosata. d' pikeimnh
    totoiw rxnh tn te zvdiakn ka tinaw tn plann
    strvn tow lamprotrouw xei. mn on tleiow n at
    kklow ka rxmenow jvyen zvdiakw tugxnei n, o d
    loipo ka mitelew tn plann tinw perixousin st-
    raw, per n kat kairn romen. n d t zvdia-
    k kataggraptai t ib zdia, p krio [ka] mxriw
    xyvn. kaston d tn zvdvn n mn tow monomoiri-
    aoiw rgnoiw dirhtai ew l moraw, n d tow dimoiriaoiw
    ew ie, ka dlon w n tow trimoiriaoiw ew i: w exe ka
    tn paralllvn graf. d rx tn moirn kstou
    zvdou st prw t mrei kay' ggraptai t prton to
    zvdou stoixeon, ka llvw prw t mrei, kay' t z-
    dion gomenon ato to zvdou stn. oon to krio
    gomenon zdin sti o xyew. k to prw tow xou-
    sin (l. xysin) on mrouw rx to krio, ka otvw
    p pntvn. tn d grammn tn shmantikn tn moirn,
    tn mn dilou to pltouw to zvdiako dihkousn, tn d
    mxri tw mseow, rx kstou gnetai zvdou p tw
    dilou dihkoshw grammw. at gr tlow mn sti to
    goumnou zvdou, rx d to pomnou. mn on to
    pantw rgnou kataskeu stin ath. kairw d loipn ka
    t per tw xrsevw ato diejelyen.
    Per tw merinw to lou diopteaw, ka
    pvw n atn mmeydvw metaxeirismeya.
    E mn on n mr& tn to lou di to rg-
    nou laben yloimen ran, rtmen k to krkou t rga-
    non otvw, ste [prs] t tetarthmrion ato t ew tw q
    katatetmhmnon moraw prw tn lion neein, ka loipn pe-
    rigomen katamikrn tn doptran nv ka ktv met t
    erhmnon n ka t at to kntrou tetarthmrion, mxriw
    n ktw esbllousa di to prw t l tw diptraw
    trupmatow, ew yteron t prw mw ps. na d m neu
    logikw meydou katxontew t rganon dusxeranvmen per
    tn doptran, ednai xr w toiathn de ysin xein t
    rganon, ste tn jvyen tun ato, lgv d tn perme-
    tron, p to lou katalmpesyai. kteron d tn
    pipdvn, w on t sti, skizesyai. d ata stn ath,
    ti t mn pl to rzontow, toutsti t kat korufn
    shme, t to rtmatow shmeon naloge, t d paral-
    ll, n grfei tte diopteumenow liow, to rgnou
    permetrow. de on atn otv kesyai, ste n t at
    pipd enai t paralll, n grfei tte liow. ka
    stai d' n otvw, e ata kribw t tui to rg-
    nou a ktnew to lou prosbllvsin, sane p' atw
    keimnou to strow. otvw on sxhmatisyntow to rgnou,
    de tn doptran, w epon, rma perigein nv te ka ktv
    p n ka t at tetarthmrion to katagrafntow miku-
    klou, t prw tn lion neon, mxriw n peuyeaw (l. p' ey.)
    ginomnhw t l tw diptraw, to lou ktw, di to
    trupmatow to prw atn susthmatou tw diptraw diel-
    yosa, diaperaivy p t trphma ka to trou susth-
    matou, to prw mw. n d t perigesyai atn cei
    fw somgeyw te ka moisxhmon t trupmati peripla-
    nmenon, ka pot mn de, pot d kese sumbanon t tw
    diptraw kinsei. de on perigein tn doptran rma tde
    kkese, mxriw n dvmen toto t fw mbllon t ntw
    pipd to prw mw susthmatou ka t trupmati totou
    prosarmzon, te loipn ka fanw at sumbanei gnesyai
    te di keno xvron. e gon tn xera plhson to prw
    mw trupmatow ggoiw atn, cei (l. ew at. c.) ppton t
    fw. fanw d sumbanei pnth t fw gnesyai, e p,
    di' w esbllei prton, tw traw ltton eh, kri-
    bw sh. e gr mezvn ereyeh, sumbanei t fw pekp-
    pton tw traw kat t ntw ppedon to susthmatou to
    prw mw. totou on genomnou, de shmeiosyai mlani
    toiot tin tn grammn, kay' n pese t moirognvm-
    nion tw diptraw (toto d sti t kron to kanonou t
    ew j lgon), ka metren psh stn rxomnhw (l. rxom-
    nous) ktvyen p to rzontow, n te prw meshmbran
    (l. pr meshmbras) doptra (l. dioptea) gnhtai, n te
    met meshmbran. sai gr ka een p to rzontow mo-
    rai, tosoton tugxnei n ka t p natolw dsevw
    cvma to lou. shmeivsmenoi on tn moran, f' w
    diopteetai liow, oon e txoi tn triakostn, de lam-
    bnein j fhmerdow t te zdion ka tn moran ato, n
    st kat' kenhn tn mran liow, w tn ran eren
    boulmeya, ka k tw meydou, n fejw lgein mllomen.
    Updeigma.
    Estv tuxn n kri kat tn k moran. de on
    tn k to krio moran p to zvdiako to n t r-
    xn shmeiosyai mlani khr toiot tin, eta loi-
    pn piskopen, n po klmati ntew diopteomen, ka lam-
    bnein t tmpanon, n t prokemenon klma kataggra-
    ptai, ka rmzein otvw n t parnti rgn, ste
    jvtrv pantw enai t zhtomenon klma: eta tn rxnhn
    tot pitiynai. ka e mn on pr meshmbraw dioptea
    gnoito, lambnein xr tn n t tumpn to prokeimnou
    klmatow sriymon t diopteuyes mor& parllhlon k-
    klon, w nn n poysei, tn triakostn, tn rxn tw pa-
    riymsevw poiomenon p to mrouw, n piggraptai
    natol, e d met meshmbran tn rxn poiomeya, k
    to ntikeimnou, n piggraptai dsiw. eta mlani sh-
    meiosyai de toton tn kklon pleosi stigmaw kat p-
    san sxdon tn grammn. e d m monomoiriaow strla-
    bow, ll dimoiriaow trimoiriaow diopteuyew tn moi-
    rn riymw n t metaj tn kklvn diastmati pptei,
    de dlon ti t metaj disthma tmnein nalgvw, ka tn
    tpon, nya pptei zhtomenow riymw, movw stigmaw
    pleosin nvyen vw ktv shmeiosyai. totou d genomnou,
    de tn rxnhn perigein mxriw n t zdion ka n at
    mora, n pxei liow, picas to paralllou kklou,
    kay' n diopteetai prxvn (l. prxvn l.) liow,
    n ka pleosi stigmaw shmeiosyai parekeleusmeya, diti
    dhlon n poaw atn cetai to lou mora, periagomnhw
    tw rxnhw. totou d genomnou, ednai de, ti n t pn
    ysin xei kat' kenhn tn ran, tn atn ka t rganon
    xon diatetpvtai, motagw t pant. met toto lamb-
    nein de tn kat dimetron to lou moran, sper nn
    tn k to zugo, ka shmeiosyai di mlanow n po shme
    to tumpnou pptvke: pptei d pantw (l. pntvs) n t na-
    logonti t p gn ato mrei: ey' otvw riymonta
    tw tn rn shmantikw grammw p prthw dutiko,
    tiw k to dutiko mrouw tn rxn poietai, pofanesyai
    tw nusmnaw to lou raw, ka mrion, e m p miw
    tn riavn grammn kat dimetron to lou ps
    mora, ll' n t metaj diastmati. t at ka p tw
    metashmerinw diopteaw. n tot gr diafor m-
    non, ti n t tn paralllvn kklvn lcei n taw pr
    meshmbraw diopteaiw p to natoliko poiomeya tn
    rxn tw pariymsevw, n d taw met meshmbran
    p to dutiko. tn mntoi tn rn lcin e p
    to dutiko mrouw rxmenoi poiomeya, n te merin
    eh dioptea, n te nukterin, di' n nn romen
    atan.
    Di t n t nalogonti t p gn tmmati
    a riaai gramma kategrfhsan, ka di
    t tn rxn tw pariymsevw atn poi-
    omeya, ka pw n ka t tw raw lhfyeh
    mrow.
    Epe gr safhneaw te ka exereaw plesthn panta-
    xo spoudn Ptolemaow pepohtai, snoide d, ti e ka-
    tagrafn n t nalogonti t pr gn misfair poi-
    saito, (n ka tn tn paralllvn kklvn pohse kata-
    grafn,) sgxusin nepoei t rgn ka dusxreian tow
    xrvmnoiw ew t diakrnein, poai mn gramma tn rn
    es shmantika, poai d tn paralllvn: di toto ew
    yteron mikklion katagegrfhke tw raw. dlou d n-
    tow kenou, ti son stn pr gn kklou mrow, dir-
    xetai liow kay' ksthn moran, tosotn stin p gn
    grfei kat dimetron to lou mora, (oon, son
    grfei kklou mrow pr gn ekost to krio mo-
    ra, tosoton p gn ekost to zugo, ka p pn-
    tvn tn kat dimetron satvs) ka ti son f-
    sthken pr gn n liow p to natoliko rzontow,
    tosoton kat dimetron ato mora p gn p
    to dutiko disthken rzontow: odn ra diafrei prw
    t gnnai t pson to diastmatow, pxei k tw na-
    tolw liow, [ete p totou], ete at tot tiw merseien,
    ete tn p to dutiko rzontow p gn [dimetron
    moran p tn] kat dimetron moran. son gr enai po-
    ddeiktai, sper epomen. pe on di tn tn katagrafn
    sgxusin n t nalogonti t pr gn misfair tw
    tn rn katagrafw ok dnato poisai ka di toto
    n t ntikeimn pepohke, totou xrin tn te kat
    dimetron to lou moran lambnei ka tathn zhte,
    pson keknhtai p gn p to dutiko rzontow, ka
    tosathn pofanetai enai tn to lou pr gn knhsin
    p to natoliko rzontow. ath mn on ata to
    tn kat dimetron to lou moran lambnein, di' n ka
    p dsevw tn rn parymhsiw gnetai p t p
    gn misfarion. na d ka t mrion tw raw pson stn
    kribw edehmen, te m ew atn tn riavn ppt gram-
    mn kat dimetron to lou mora, ll' n t metaj,
    de shmeiosyai stigm tn tpon nya pesen: eta kat' ato
    to shmeou yntew (l. yntas) klamon mlani bebregmnon, ka
    metaknhton fuljantew (l. tas) atn n t lhfyes tw r-
    xnhw mor&, ka sumperigontew atn n t rxn par' ktera
    mxri tn par' ktera riavn grammn, tn k to m-
    lanow ginomnhn n t tumpn grammn metren lhn spar-
    t toiot tin: eta zhten, pston mrow st tw lhw
    tathw grammw mxri to shmeou, n pesen kat di-
    metron mora tw diopteuyeshw. ka otv ka t mrion
    tw raw ka t pston stn pofanetai.
    Etra myodow.
    Ka llvw d texnikteron sti t tw raw mrion eren.
    de gr n tn moirognvmonvn n t moirognmoni tw rx-
    nhw pithrsai, psouw deisi paralllouw, lon ka mrow,
    n s lhfyesa to zvdiako mora lon t metaj tn
    par' ktera riavn grammn disthma deisin, n p-
    ptvken: eta plin nvyen skopen, psouw deisi parall-
    louw mrow t at moirognvmnion, n s plin at
    mora deisi t mrow tw raw t zhtomenon mxri to
    metaj shmeou, n pptvke, ka otvw erskein tn to
    mrouw lgon prw tn (l. t) lon: oon, e tn lhn moiriaan
    distasin t moirognvmnion tssaraw tuxn dilye paral-
    llouw ka misu, trton enai mrow lge tw raw t zh-
    tomenon. toto d poien dunatn ka p tn rgnvn, f'
    n (add. ) jvyen tuw tn tumpnvn ka ato to doxeou
    to dirhmnou dirhtai ew tj moiriaa tmmata k to
    ew at pptontow tw rxnhw moirognvmonou. riym-
    santew gr n ps psaw moraw t zhtoumn r& t moi-
    rognvmnion deisin, eta plin psaw t at deisi moiro-
    gnvmnion n t mrei t dihnusmn tw atw raw, per
    zhtomen pson (l. pston) st tw lhw, k totvn tw
    prw llhla summetraw, tn te tw lhw raw ka tn
    to mrouw, cmeya pston st t tw lhw mrow t zh-
    tomenon.
    Oti ka tssara kntra sunanafanetai, t te
    roskopon ka t mesouranon ka t diame-
    tronta totoiw: ka ti n dxetai n tisin r-
    gnoiw n t tuxnti tumpn diopteein.
    Ek d tw ysevw tathw atyen xomen ka t tw-
    sara kntra, t te roskopon ka t mesouranon ka
    t totoiw kat dimetron, t te dutikn fhmi, ka t
    p gn to mesouranontow. tw gr to zvdiako moraw,
    n stn liow, (sper pkeitai nn tw k to krio) kei-
    mnhw n t paralll, n erhtai (t triakost tuxn
    p natols), de skopen, pon sti t natllon zdion,
    ka psth totou mora ka mrow atw to rzontow
    ptetai, ka tathn roskopen pofanesyai: movw rn,
    poon dnei zdion ka poa totou fptetai mora to
    dutiko rzontow, toutsti to prw dusmw sxtou pa-
    ralllou, ka tathn enai lgein dutikn kntron: d-
    lon d, w kat dimetron keimnh t natellos stn
    dnousa: ti ka poon zdin sti ka psth totou
    mora, tiw fptetai tw nalogoshw t meshmbrin
    grammw n t nalogonti t pr gn misfair to
    tumpnou mrei, ka tata (l. tathn) enai lgein t me-
    souranon kntron, tn d diametrosan atn n t p
    gn dhlonti mesouranmati, tiw n t loip mrei,
    t p gn misfair to tumpnou mrei, pesetai tw
    t mesouran nalogoshw grammw. ka toto d ed-
    nai de, ti n ow jvyen tuw tn tumpnvn ew tw tj
    moraw dirhtai, diforn stin n odpote tumpn tn
    doptran rmsantaw diopteein, to gnvmonou ato prow-
    pptontow ew atw: t d loip tw xrsevw, n t zh-
    toumn klmati tn rxnhn rmzontaw, de poien, w dh
    epomen.
    Per tw nukterinw tn plann strvn n-
    txnou diopteaw.
    Per mn on tw merinw diopteaw tosata. per d
    tw nukterinw epvmen, ti katagegrammnoi esn n t
    rxn plann ka lamprn strvn tinw, n tis mn
    iz, n tis d ka pleouw: n pntaw (l. pntvs) tinw n ps nu-
    kt ka n kst r& fresyai pr gn ngkh, oon
    tuxn luraow ka rktorow ka o loipo, ow ka n t
    rxn katagegrammnouw erseiw. parkeitai d kst t
    dion to pigegrammnou strow moirognvmnion. de on n nu-
    kt tn ran laben ylontaw diopteein na tn keimnvn n
    t rxn strvn tn fainmenon (l. tn fainomnvn) pr gn.
    diopteuysetai otvw. metevrzomen k to rtmatow t rga-
    non ka pernv at to metrou tyemen mmatow, ka
    tn dirhmnhn ew tw nenkonta moraw to rgnou pleu-
    rn piklnomen prw tn diopteumenon stra, w n t
    at pipd to strow atn, w ndxetai mlista, ke-
    syai. eta t mma poyntew kat tn doptran, perigo-
    men atn rma tde kkese, mxriw n to mmatow
    ktw di tw pw to ktv susthmatou prosbllousa t
    p to nv susthmatou di' mfon ma tn stra ye-
    shtai: nya ka kribeaw pleonow xrea, m, paratrcan-
    tew t mma, lyvmen autow jvyen tn susthmatvn
    yeasmenoi tn stra ka m di' atn. di de montaw
    tn teron fyalmn, yatr mn diopteein, m plnh tiw,
    n erkamen, gnhtai. dioptesantew on tn stra, sko-
    pomen tn moran, n t moirognvmnion tw diptraw pese,
    psh stn p to rzontow, movw tow p to lou gi-
    nomnoiw, ka tathn shmeiomeya. eta zhtsantew t klma,
    n n t' dioptesamen (l. ntew divptesamen,) tn motag te
    ka sriymon n at parllhlon t diopteuyes mor&: sh-
    meiomeya plin mlani. e mn on diopteuyew str n t
    to meshmbrino tetarthmor tugxnei n, p tw nato-
    lw de tn parllhlon shmeiosyai: e d met meshm-
    bran, p dsevw, paraplhsvw tow p to lou gegenh-
    mnoiw: eta tn rxnhn rmsantew n divptesamen
    ntew klmati, zhtomen n at tn diopteuynta stra:
    oon fre epen tn luraon tn stxun llon tin: ka
    totou genomnou, perigomen tn rxnhn, w n totou to
    strow moirognvmnion fchtai to paralllou kklou,
    f' diopteetai str, n ka shmeivsmeya. eta la-
    bntew j fhmerdow tn to lou moran, n tugxnei
    n tte liow, ka k tw met' lgon lexyhsomnhw mn
    meydou, atyen ersomen atn osan n t mikukl
    to tumpnou, n a rai kategrfhsan. shmeivsmenoi
    on mlani ka riymsantew tw raw p dsevw ka t
    loip poisantew movw tow p to lou, tw te dihnu-
    smnaw tte nukterinw raw ka t mrion, e otv txoi,
    ersomen. satvw d ka t tttara kntra atyen c-
    meya kemena p tn okeon tpon.
    Pw de gnnai, pteron pr to meshmbrino
    diopteuyew liow tn plann strvn ka-
    stw stin (add. ) n at met' atn: ka pw
    ksthw tn n t zvdiak moraw t mgiston
    sti laben cvma.
    E mn on pr to mesourano kklou pleston dieistkei
    (l. disthken), met tn meshmbrinn, diopteumenow str
    liow, =&da gnetai dignvsiw k tw asysevw, pooiw
    tmmasi tn paralllvn xrhsmeya, pteron tow pr me-
    shmbraw tow met meshmbran. od gr (add., e) pol prw
    t natolik nneuken rzonti, pol prw t dutik,
    plnh gnetai, pteron pr meshmbraw stn, met meshm-
    bran diopteuyew str liow. e d snegguw eh
    lan to mesourano, dhlon stai, pteron pr to meshm-
    brino stn, met tn meshmbrinn. diakrnomen d ka
    toto tn trpon toton. e tn lion divptesamen, de zh-
    ten, pston cotai kat' kenhn tn mran t mgiston, kay'
    n divptesamen. na d toto gnmen, de laben t zdion
    ka tn moran, n stn liow kay' kenhn tn mran,
    sper nn tn ekostn to krio, ka shmeivsmenoi (l. m-
    nous) n t rxn mlani tathn tn moran, perigein a-
    tn, mxriw n picas tw to meshmbrino grammw: eta
    zhten pst paralll frmose, ka toto lgein t m-
    giston p gw cvma to lou n t ekost mor& to
    krio ntow. totou d genomnou, e mn diopteuyew liow
    p tathw erhtai tw moraw, lgv d to megstou c-
    matow, dlon w p' ato to mesourano tetxhken n:
    e d lattnvn dipteutai moirn, pr meshmbraw met
    meshmbran prxen. na on toto gnmen, mikrn pi-
    sxntew, plin dioptesomen, ka e mn pleona tn moirn
    genmenon ervmen riymn, dlon ti pr meshmbraw n
    te prton dipteutai: e d' lttona, met meshmbran.
    ka llvw: e dioptesantew tn lion, eromen atn, e
    txoi, moirn o to rzontow cvynta, eta ox oo te men
    k tw asysevw diakrnai, pteron pr meshmbraw stn,
    met meshmbran, de, perimenantaw movw brax ti, plin
    dioptesai: ka e mn prosyhke tuxn ka ggonen oa, e-
    dhlon w pr meshmbraw prteron dipteutai liow n:
    e d fele ka ggone tuxn jy, dlon ti prteron, te
    divpteyh, met meshmbran n. n' on toto gnmen, de
    p dsevw tn tn paralllvn parymhsin poiesyai, w
    prton divpteyh to rzontow phrmnow, w pkeitai nn,
    tn o: eta farmzein tn n t rxn to zvdou mo-
    ran, n (l. ) tugxnei tte n liow, kat tn diopteu-
    ynta parllhlon, sper nn tn p dsevw bdomhkostn.
    ka e mn n at eh t mesouran diopteuyew, dlon w
    p' atw pesetai tw grammw to lou mora tw t me-
    shmbrin nalogoshw, ka tow paralllouw tmnei: e d
    met meshmbran, paralljei tathn w p dsin. ta-
    ta mn p to lou. ka p tn strvn d tow atow
    plin xrhsmeya trpoiw, zhtontew pson diopteuyew str,
    n diopteetai klmati, t mgiston cotai. toto d
    gnvsmeya otv: t moirognvmnion ato t nalogos e-
    ye& t mesouran farmzontew ka skopontew, pst pa-
    ralll, e kat' atn tn to meshmbrino grammn fr-
    mose, tosoton ato lgein kat' keno t klma t mgiston
    cvma: ka t loip poien sa ka p to lou gnesyai
    dietjamen. ka t deutr d trp kntaya xrhston.
    brax gr plin de dialpein, eta diopteein ka t loip
    satvw poien. plin gr e met' lgon dioptesantew
    tn stra, lttona moirn eromen tn riymn, t to
    diopteuyntow strow moirognvmnion rmsantew t ri-
    ym to paralllou, f' katelhptai n t prt diopte&
    n, (p dsevw, w epon, tn parymhsin tn paralllvn
    poiomenoi,) e mn eromen p' atw tw t meshmbrin
    nalogoshw grammw ppton t to strow moirognvmnion,
    famn atn p' ato to meshmbrino diopteuynai, e
    d tathw w p dsin paralljasan, met meshmbran: k
    d tn erhmnvn dln sti, pw on t stin, ksthw mo-
    raw zvdou t mgiston laben cvma kay' kaston klma.
    de gr, tn rxnhn n t tumpn to zhtoumnou klma-
    tow pitiyntaw, eta tn moran kenhn, w t cvma laben
    boulmeya, perigein mxriw n picas tw to meshm-
    brino grammw: ka atyen ersomen ka tn pigrafn
    katagegrammnhn to tn moirn cmatow. otvw on ka
    t cvma ksthw moraw eren dunhsmeya. toto d
    sti ginskein tn meshmbrinn kay' kaston klma.
    Pw stin eren, psoiw shmerinow xrnoiw
    n kaston zdion nafretai ka psoiw dnei.
    Ka llhn d xrean to rgnou prosysomen. er-
    somen gr di' ato, psoiw xrnoiw shmerinow kay' ka-
    ston klma tn zvdvn kaston k to natoliko rzontow
    pr gn nafretai, ka psoiw plin katadetai. ston
    d prton, ti n t mrei to rgnou, n t tmpana
    mblletai ka rxnh pityetai, ka doxeon tn tum-
    pnvn kalen eyhsan, pansthk tiw perifreia dirhmnh,
    w ka prteron epon, ew tj moraw, atinew nalogosi
    taw to shmerino tomaw, w ka xrnouw shmerinow ka-
    losin. rmozomnou d to pantw rgnou, sunexw pvw
    gnetai panesthkua perifreia t pipd to jvyen
    pikeimnou tumpnou, w n trpon tin t pn ppe-
    don gnesyai. ka gr n tow monomoiriaoiw rgnoiw, n
    ow ok stin w p t pol doxeon, ll' kaston tm-
    panon at kay' aut dirhmnon st di' at t mge-
    yow, ka ox tr pikemenon, ok pansthke mn lvw
    erhmnh perifreia. n kst d prati tumpnou, tou-
    tsti t perimtr atn, o erhmnoi tj shmerino xr-
    noi katagegrammnoi esn: n ow ka t tw rxnhw moi-
    rognvmnion pptei.
    Updeigma.
    Upokesyv on, zhten mw, n psoiw shmerinow xr-
    noiw skorpow tuxn n t trt klmati nafretai. de
    on n tot t klmati tn rxnhn pitiynai: eta tn
    prthn to skorpou moran rmzein t prt j na-
    tolw paralll: eta zhten t n t tlei tw rxnhw
    moirognvmnion: ketai d kat tn jvyen atw kklon
    tn mtomon: po& mor& to erhmnou kklou frmosen,
    n famen ew tj moraw dirsyai, a ka shmerino xr-
    noi kalontai, ka tathn shmeiosyai: eta perigein tn
    rxnhn, mxriw n sxth to skorpou mora, toutstin
    triakost, panexy ka farms t prt j na-
    tolw paralll: eta plin zhten t erhmnon moirognv-
    mnion, po& mor& to ato nklou frmose, ka sh-
    meiosyai ka tathn: eta metren tw psaw p tw j r-
    xw shmeisevw mxri tw steron, ka son n ervmen tn
    tj xrnvn dielhluyw t moirognvmnion n ps t to skorpou
    nafor, n tosotoiw lgein atn shmerinow xrnoiw pa-
    nafresyai. t at ka p tn loipn kstou. otvw
    on gnvsmeya ka kaston zdion kay' kaston klma n
    psoiw shmerinow xrnoiw nafretai. tn atn d tr-
    pon ersomen ka psoiw shmerinow xrnoiw kaston kata-
    detai, tn prthn movw to zhtoumnou zvdou moran
    rmsantew t sxt paralll prw dsin, ka shmeiv-
    smenoi tn moran, n t jvyen tw rxnhw moirognv-
    mnion pesen: eta plin perigontew, ka tn tria-
    kostn ato moran ew tn atn dutikn rzonta yntew,
    toutsti tn sxaton parllhlon: ka plin t tw r-
    xnhw moirognvmnion piskopsantew po pptvke, ka ri-
    ymsantew, psouw dielluyen shmerinow xrnouw n ps
    to zvdou katafor, romen n tosotoiw xrnoiw t zdion
    katelyen p gn.
    Pw ksthw mraw ka nuktw kairikn ran
    ersomen: movw psvn stn shmerinn.
    xrnvn.
    T at d meyd ka ksthn mran kairikn, psvn
    stn shmerinn xrnvn, eren (add. stin) ka ksthn ran.
    na d toto gnmen, de plin laben tn moran, n stn
    liow, ka tathn farmzein t prt j natolw paral-
    ll: eta shmeiosyai tn moran, n t n t rxn moiro-
    gnvmnion pptei: eta perigein tn rxnhn, mxriw n mora
    to lou n t teleuta kat t dutikn mrow gnhtai
    paralll, tatn d' epen, mxriw n t pr gn lon
    misfarion kperily liow. totou d genomnou, de
    plin shmeiosyai tn moran, n t moirognvmnion tw
    rxnhw pese, ka riymen tw moraw, rxomnaw (l. mnous)
    prton j w shmeivsmeya mxri tw teleutaaw: ka to-
    sotvn xrnvn shmerinn lgein enai tn prokeimnhn
    mran: totouw d mersantaw ew tn ib, lgein ka
    ksthn ran kairikn psvn st xrnvn shmerinn, ka
    mrouw. t at d meyd ka tn doyesan mn kairi-
    kn nkta ka tn kairikn rn atw t mgeyow er-
    somen, tn to lou moran p tn dutikn tiyntew r-
    zonta, toutstin n t sxt paralll, ka shmeio-
    menoi, po& mor& tw jvyen tuow to rgnou sumbllei t
    tw rxnhw moirognvmnion: eta perigontew tn r-
    xnhn, vw n to lou mora, t nalogon t p
    gn to tumpnou mrow dielyosa, to natoliko cas
    rzontow, toutsti to sxtou prw natoln parall-
    lou: ka toto poisantew, skopmen plin tn moran, w
    fptetai t tw rxnhw moirognvmnion: eta tw psaw
    riymsantew p tw j rxw shmeivyeshw, tosotvn enai
    lgomen shmerinn xrnvn tn prokeimnhn kairikn nkta.
    ka tataw (l. totous) on ew t ib mersantew, erskomen
    ka tn nukterinn ran psvn stn shmerinn xrnvn.
    xeiw on nteyen ka tn tn kairikn rn ew tw sh-
    merinw dikrisin.
    Pw stin eren k to rgnou tn to lou
    poxn: n plin, pw sti laben t kay'
    ksthn mran to lou mgiston cvma.
    Ka tn poxn d to lou laben stin neu chfo-
    foraw k tw to rgnou xrsevw tn trpon toton. de
    laben t mgiston kat' kenhn tn mran p gw cvma
    to lou: lhcmeya d toto diopteontew atn per a-
    tn tn meshmbran: dlon d ti pleistkiw diopteein
    de mxriw n mhkti t cei prosy, ll, t mgiston
    ryew cvma, plin rjhtai meiosyai ka prosgeiterow
    gnesyai: safw gr, ti t f' o rjato fairen tou-
    tstin ato t mgiston cvma: labntew on toto, eta
    piskopsantew, poon tetarthmrion dirxetai liow, p-
    teron t p tw arinw shmeraw, t p metopvrinw,
    t p yerinn trpvn, t p xeimerinn, (safw d
    toto pnth: ka gr o xrnoi, o te shmerino ka o tro-
    piko, psin prxousi gnrimoi) lhcmeya toto t
    tetarthmrion n t zvdiak t n t rxn: eta yntew a-
    tn tn rxnhn n ntew divptesamen klmati, ka k-
    sthn to tetarthmorou moran, n dirxetai tte liow,
    farmsantew thnikata t mesouran, zhtsomen poa
    atn tosotouw cotai paralllouw n t mesouran
    ka tn genomnhn, sh (l. shn) erhtai kat' kenhn tn mran
    comenow liow, kenhn pofainmeya pxein tte tn
    lion. toto d gnetai, e m plhson eh tn tropikn
    liow, ll pol totvn disthke. e gr plhsizei, t-
    raw plin desei diakrsevw, n didjomen.
    Poai morai tn n t zvdiak p tn a-
    tn es paralllvn, ka t at cvma
    contai: ka pw stin eren atn tn lion
    met t tropik shmea, n po tetarthmor
    to zvdiako prxei.
    Odema mn on tn n t at tetarthmor mora
    t at cvma tr& cotai. n pant d t zvdiak
    met t tropik shmea kat do mnaw t at cvma
    coumnaw erseiw. es d atai a p tn atn pa-
    rllhlon osai. p tn atn d esi parllhlon a
    tn shn pstasin festhkuai tn tropikn shmevn,
    katrou d&, to te yerino fhm ka xeimerino, ka
    kurvw st tropik: k totvn gr p te t breia
    ka p t ntia trpetai liow: p mn gr agoke-
    rvw rxetai p bor
    =n cosyai, mxri karknou.
    k totou d plin napodzein rxetai ka katinai prw
    nton mxriw agokervw. t mntoi shmerin zdia tro-
    pik fas tinew, kay d enai lgousin o pollo tw tro-
    pw di tw tn rn metabolw. mna on t do sh-
    mea kurvw es tropik, lgv d prth mora to kar-
    knon tuxn, ka prth mora to agokervw. nn gr
    ok kribologhton per totvn, per od sstoix esin
    troiw: odema gr to zvdiako mora t at cvma
    cotai totoiw: prata gr esi lojsevw ato: yen
    od p tn atn esi parllhlon ote llloiw ote
    ll tin tn n t zvdiak mor&. t d shn festhkta
    distasin totvn tinw par' ktera f' na te ka tn
    atn esi parllhlon, ka di toto t at cvma p
    tw gw contai: oon fsthke par' ktera tw rxw
    to karknou shn distasin rx to lontow ka tn
    didmvn rx: l gr mora esi par' ktera. atai
    mn on a do morai, te to lontow rx ka tn
    didmvn plin rx, p te tn atn esi parllhlon, ka
    di toto t at mgiston cvma contai p gw. na
    d safw gnhtai t legmenon, de ew t do prata to
    pr gn misfairou rmsai t do shmerin zdia,
    ew t natolikn mn fre tn rxn to zugo, ew t
    dutikn d tn rxn to krio. tata gr cei na ka
    tn atn xonta parllhlon, tn prtiston, di' o rzetai
    t te t pr gn misfair nalogon to tumpnou m-
    row ka t p gn. totvn d otv keimnvn, cei ka
    tn prthn to karknou moran farmzousan t to
    meshmbrino gramm ka tn to agokervw prthn,
    ka p t shmerin son disthke to yerino, lgv d
    tw to karknou prthw moraw. di toto p te tn
    atn esi parllhlon, w epen (l. epon), ka t at
    cvma p tw gw contai, eta movw ka tw
    loipw katrvyen son diesthkuaw moraw p tw pr-
    thw to karknou plin cei to ato fvptomnaw
    paralllou ka t at mgiston coumnaw disthma.
    tw atw d tataw cei ka k tn do shmerinn sh-
    mevn son diesthkuaw. t gr tn tropikn tinw son die-
    sthkta, tata ka tn shmerinn mfotrvn son disthke
    yteron yatrou, ll to mn p t gomena, to d p
    t pmena: oon, son disthken rx tn didmvn tw
    rxw to krio p t gomena, tosoton rx to l-
    ontow tw rxw to zugo p t pmena: ka plin son
    disthke p t pmena rx tn didmvn tw rxw to
    karknou, tosoton p t gomena rx to lontow tw
    rxw to karknou. ll' ox ti k tn shmerinn son
    diestkasi, di toto p tn atn esi parllhlon, ll'
    ti k tn tropikn. tw gon rxw to krio son die-
    stkasin te tn xyvn rx ka to tarou, ll'
    ote p tn atn esi parllhlon, ote t at m-
    giston cvma contai mfv. o mn gr xyew es
    notiteroi, d tarow boreiterow: ll mn ka son
    disthken p t gomena (l. pmena) tw rxw to
    krio tn xyvn rx, tosoton plin disthken p
    t gomena (l. pmena) rx tw parynou tw
    rxw to zugo. ll' ok esin p tn atn parl-
    lhlon, peper borea mn stin pryenow, ntioi
    d o xyew. pe on t par' ktera tn tropi-
    kn tinw son diestta p tn atn esi parllh-
    lon, mfv d t shmerin tn tropikn son disthke ka
    p tn atn esi parllhlon, di toto ka t katrvyen
    tn do shmerinn son diestta yteron yatrou, to mn
    p t gomena, to d p t pmena, n (add. t) at
    es paralll. odn d deisi kn tn mn rxn to krio
    kat tn natolikn yehw rzonta, tn d rxn to zugo
    kat tn dutikn, mesouranoshw dhlonti tw rxw to ago-
    kervw. t gr at cei plin sumbanonta. do on tn
    shmevn ntvn mnon par' ktera tn tropikn [tn] t
    at coumnvn disthma, e mn to lou per at t
    tropik ntow tn poxn ato zhtomen, dusdignvstow
    eresiw gnetai, n po tetarthmor tugxnei n, di t
    at cosyai tw par' kteron son festhkuaw tn
    tropikn. oon tw rxw to karknou fre moraw q,
    tn d f' ktera met i, toutsti tw dekthw to kar-
    knou ka ekostw tn didmvn, coumnvn, w n poysei, mo-
    raw pz, e per tn ekostn tn didmvn ntow to lou,
    per tn dekthn to karknou, zhtsomen tn to lou poxn:
    eta labntew ato t mgiston cvma moirn prxon w pe-
    ymeya pz, zhtomen poa mor tinow tn n t rxn
    tetarthmorvn tosoton cotai t mgiston: ka ersomen
    ti ka to karknou dekth ka tn didmvn ekost
    t at poietai t mgiston cvma: ka pe ox oo
    te men kribw k tw asysevw diakrnai, pteron
    pr tn yerinn tropn stn liow n t k tn did-
    mvn, met tw yerinw tropw n t i to krio:
    t at gr sumbanei ka p totou, per sunbaine
    per atn tn meshmbran, diopteuntvn mn tn lion:
    toto d tuxn gnetai, e, n rm poln diatrcantew
    xrnon, mhdn edehmen lvw tn mna, par' ynei
    diafrvw ka o kay' mw riymonti tow mnaw mh-
    dlvw riymonti plin: man do mraw dialepontew
    ka dioptesantew movw, e mn prosynta ervmen tn lion
    t cmati, dlon ti pr yerinn tropn prteron n,
    e d felnta, met yerinw. ka otv mn on, e plh-
    son eh tn yerinn, tn xeimerinn tropn liow.
    e mntoi pol festhkw eh liow tn yerinn tn
    xeimerinn tropn p tde p tde, ma stai loipn
    mfisbthsiw, poou tetarthmorou de zhten moran toso-
    ton coumnhn t mgiston, son diopteetai mn come-
    now liow. e mn gr pr yerinn tropn zthsiw eh,
    p krio mxri tw l tn didmvn moraw, tatn d epen,
    prthw karknou zhten de poa totvn mora tosoton to
    rzontow t mgiston cotai, per comenow diopteetai
    tte liow: e d met yerinw tropw, p tw rxw
    to karknou mxri tw l moraw tw parynou, tatn d
    epen, rxw to zugo. movw e mn pr xeimerinn
    tropn p' rxw to zugo mxri triakostw to toj-
    tou, tatn d epen, rxw agokervw: e d met
    xeimerinw tropw, p' rxw agokervw mxri triakostw
    xyvn, tatn d epen, rxw krio.
    Pw tn planvmnvn kstou tn poxn er-
    somen.
    Esti d ka tn loipn planvmnvn tw poxw k to
    rgnou laben kribw mn, tan sin n at t di m-
    svn tn zvdvn, paxumersteron d, e paralttoien p
    ytera, tn trpon toton. de prton na tn nteta-
    gmnvn plann n t rxn dioptesai, kat tn dh pa-
    radoyesan myodon: eta mayntaw psouw cyh tte pa-
    ralllouw to natoliko rzontow to dutiko, kata-
    stsai tn rxnhn n diopteomen klmati, nalgvw t
    to pantw ysei: toto d sti t moirognvmnion to dio-
    pteuyntow planow farmzein t paralll, n ka
    dipteutai n: eta plin tn zhtomenon tn planvmnvn
    diopteein ka shmeiosyai, psouw jrtai paralllouw k
    to dutiko natoliko rzontow, ka zhten tn sri-
    ymon t prokeimn klmati parllhlon, ka totou t tm-
    ma t prw dusmw prw natolw, n katelhptai n
    planmenow: eta zhten t tmma toto to paralllou,
    po& mor& to zvdiako sumbllei, kkenhn lgein pxein
    tte tn diopteuynta planmenon stra. ektvw d, to mn
    lou tn di tn msvn e kinoumnou, sumbanei kribw
    diopteontaw tn poxn ato laben, peidper n at
    fretai e, n ka tw poxw tn xrnvn krnomen.
    p d tn loipn, pe m p tathw e frontai, ll
    ka lojn prw atn pollkiw poiontai tn knhsin, w pot
    mn boreiotrouw atn, pot d notivtrouw gnesyai, pe d'
    n tathw atow parallttontaw dioptesvmen, e tn p'
    atow feromnhn k to mmatow eyean jaggvmen p
    tn zvdiakn, ngkh, m ew atn pptein tn di msvn,
    ll' ktw, p t boreitera tathw, p t notitera,
    ka di toto mhd tn poxn atn kribw katalam-
    bnesyai, peidper, w epon, kat mnhn tn di msvn
    tn poxn gnetai krsiw.
    Pw stin eren ksthn moran to zvdia-
    ko, pson to shmerino parallssei p
    bor
    =n ka p nton: movw d ka tn lion
    ka tn selnhn, tn planvmnvn kaston.
    Ersomen d k tw to rgnou xrsevw ka ksthn to
    zvdiako moran, pson kat pltow to shmerino disth-
    ken p bor
    =n p nton, tn trpon toton. erhtai mn
    n tow prolabosin, ti t metaj to xeimerino tropiko
    ka to yerino disthma tn lhn to zvdiako dielhfe
    ljvsin, moirn prxousan mh. p mn gr to yeri-
    no tropiko mxri to shmerino mora esi kd, p d
    shmerino mxri to xeimerino a loipa morai kd. d-
    lon d ti ka p tn xeimerinn tropn mxri yerinn
    t lon mikklion dierxmenow liow p bor
    =n cotai,
    mpalin d p yerinn mxri xeimerinn tapeinotai p
    nton. metaj d dhlonti to yerino tropiko ka to
    xeimerino shmerinw prxei kklow. yen sumbanei
    dw to niauto tn lion n tot gnesyai, p mn tn
    yerinn tropn p tw xeimerinw tropw rxmenon kat
    tn zugn, p d tn xeimerinn p tw yerinw kat
    tn krin, ste sumbanein kay' kaston mikklion pot
    mn p bor
    =n, pot d p nton to shmerino tn lion
    gnesyai. e on boulhyehmen ka ksthn moran to zvdiako
    kay' kteron mikklion eren, pson to shmerino kklou
    disthken p t breia p t ntia, ersomen toton
    tn trpon.
    Tn shmerinn shmevn, lgv d tn rxn to krio
    to zugo, de t pr gn farmsai mesouran, ka sh-
    meisasyai n pptei paralll: eta plin tn zhtou-
    mnhn tn zvdiako moran t at farmsai meshmbrin
    ka shmeisasyai n pptvke paralll. totou d ge-
    nomnou, souw n ervmen paralllouw kklouw p to
    shmerino mxriw kenhw tw moraw, tosataw moraw a-
    tn diestnai to shmerino fsomen: pteron d p t
    breia p t ntia, atyen k tw cevw t zhtome-
    non xomen. n mn gr jv to shmerino zhtoumnh
    mora ppt, w p tn xeimerinn tropikn, sper p
    to tumpnou kataggraptai, dlon ti p t ntia to
    shmerino disthken: n d ntw to shmerino, w p
    tn yerinn tropikn, lgomen p to shmerino peri-
    xesyai, dlon plin w p bor
    =n zhtoumnh to zvdia-
    ko parallttei mora. dlon d tot sti ka j atw
    mnhw tw tn zvdvn ysevw. e mn gr t met tn r-
    xn to krio vw tw ky to agokervw zhtomen,
    dlon w p t breion to shmerino parallttou-
    sin: e d t met tn rxn to zugo vw tw ky
    tn xyvn, p t ntion to ato mesourano tn
    parallagn jousi. pant d fanern w nteyen xomen
    pntote lou (l. lion) ka selnhw (l. selnhn) ka tn pla-
    nvmnvn strvn kaston, labntew kay' ksthn to zv-
    diako ginomnhn moran, pson p nton p bor
    =n
    to shmerino parallttousi. tn gr moran, n pxei
    liow selnh tn planvmnvn strvn kastow, la-
    bntew, ka t proeirhmna pnta poisantew, ersomen t
    zhtomenon. son gr to zvdiako mora parallttei to
    shmerino p bor
    =n p nton, tosathn ka p' atw
    str tn parallagn poietai. t at meyd xrh-
    smenoi ka kstou (l. kaston) tn n t rxn plann
    esmeya, pteron notiterw stin boreiterow to sh-
    merino, ka psaiw totou moraiw disthken p ytera.
    tlow.



Copyright 2000 Giovanni Ferrero