57 



^Jirfl^o ttii^ ^^lolai^i^toba^truii^en —56", 7; '*Peckt —60°; eaijjc« 

 i?urcfi bie ülnume^-^dMial^nie tu ber '2(tinp|>l)ave aw} 367 meintr 

 i^ecbadiruiigeii in ber ^(iibi'o fette inii) in 9)ieiico — 65", burct) 

 il)ermometer.-9)?eiTuiiöeii am OJiontblaiu iiiib bei ber aerortarifiteu 

 Oieii'e »oii @a»).-2ii(Tac -77"; Siv ^o^)'» J^i'i'iitel Edinburgh 

 Krvicw Vol. 87. 18iS p. 223) — ii'i" '^., alfo —Ol" Seut. 

 »Bie 'ippiiTou, ba bte O^iittcl: leniiierarur von WcUnlIe:3"l^l (-^r- 

 74°47'j ütou —18", 7 i|^, für ben 2i5eltraiim aiiö rein tljeoreti-- 

 l'cfeen ©rüiiben, nach beium ber »Beltraum uuiriiier alö bie andere 

 @renu' ber *^ltinot>lnue fein Toll (§ 227 p. 520), mir — 13°, iinb 

 bageijen 'ipoiiillet nach actinometrir*eu ü>erruclien (Cotnpies ren- 

 dii.s de l'Acnd. des Se. T. VII. 1838 [.. 25-65) gar - 142" 

 finben; niii^ üßimber neljmeu iir.b in bieiVn iutereiTanten ^vecii-- 

 latioiicn i>a^ ^^Tertraiien ju l^cn Ih'SIh'v ein9erd)lrt9eneu 2Öeaea 

 mlnbern. 



" (»S. 47.) "ipoirriMl, Tlu'oric mnlliem.de iaChnleiir 

 p. 438. -)Jacl) i()m hat bie erljartiing ber Grbi* übten von bcm 

 (:!entvuni anvjefani]en, iinb i|t vpii biefeni jnv ObcrfladK allnialig 

 tprfaefcl)ritten; 5 i;>3 p. i29. (iu'ViiI. aiui> A c e m o ^ 'i^b. I. 

 e. 184.) 



■"' (®. 48.) .<\ü^mp'5 '-J^b. I. e. 86 iinb 149. 



*' ((£. 49.) »Werc iio Jilniospliere, ;i Iherniomeler. Irccly 

 exposcd (at sunsel) lo the healiiig iiilluciicc of ihc carlh's uidia- 

 lioii, and the oooliiig power of its own into spnce, would iiidi- 

 cale a medium tcmperalure belwcen tliat ol llie celeslial spaces 

 (—132" Fiilir. = -91" Cent.) and llial ol" the carlh's surface 

 below il (82" F. = 27", 7 Cei:l. al ihe eqiialor. —3", 5 F. ^ 

 — 19", ö Cent, in Ibe l'olar Se.i). Undcr ihc rqualor, Ihen. it 

 would stand, on ihc avcra^^e, al —25" F. = — 31", 9 Cenl., 

 and in llio Polar Sea al —68" F. — — 55",ö Cenl. Ihe prc- 

 sencc ol ihc almosphere lends lo prcvcnl ihc thermomelcr so 

 exposed from altaining Ihese extreme low leniperatures: lirsl, 

 by im[);irting heal by oonduclion; serondly by inipeding radia- 

 lion oulwards." Sir 3p1"i J?erf(bel im lidinbnrgh Review 

 Vol. 87. 18i8 p. 223. — '>Si la chaleur des espaces planclaircs 

 n'exislail poinl. notre almosphere eprouverail im rcfroidisse- 

 ment. dont on nc peut fixer la liniile. I'robabktncnl la \ie 

 des plantos et des :tiiini.iux serait iinpos-'^ibie a la .surface du 



