382 Analyses of Books. [May, 
-rature of 70°-near Wadsoe, the temperature of the earth is 2°2° 
above the point of congelation. 
Between the tropics America is as hot as in the old Continent, 
as may be seen in the following table :— 
Old Continent. New Continent. 
Mean Temp. Mean Temp. 
Senegambia ...... 26°5° CUMBNa | uhm ete 
Ma drags tes sich en ese 26°9 Antilles. ..5.. it sad 27°5 
TRALAONA Eeiveo"t ike» 6s pe Vera Cruz... Sune 2G 
Manilla jis wunasaiit . p's Havannah........ 25°6 
On the south side of the line the temperatures appear less than 
on the north; thus Rio Janeiro and Havannah are nearly at the 
same distance from the equator. The following is the mean tem- 
perature of similar months in each ;— 
Rio Janeiro, Havannah. 
BT ENT A Sc 20:0° December ....... een 
Sulp A theanee: « . 21:2 PAMUALY 2s eee ees e.g 
SANUATY, 5.5 al nrtt ae cia 26:2 Jul¥ia.t sod .quetans 285 
February. ........ 27°0 August ...6.08.5:' 288 
On the coast of Peru the temperature is considerably diminished 
by the perpetual cloudiness of the sky, and by a strong sea current 
setting in from Cape Horn. The mean daily temperature is scarcely 
20° — 22°5°, and that of the night 15° — 17°. Humboldt has 
seen the thermometer on the sea shore south latitude 12° 2’, as low 
as 13°. From the tropic to latitude 34° south, the mean tempe- 
rature of the southern hemisphere scarcely differs from that of the 
‘northern. The mean temperature at Port Jackson (lat. 33° 51’} 
is 19°3°; at the Cape of Good Hope (lat. 33° 55’) 19°4°; at Buenos 
Ayres (lat. 34° 36’) 19°7°. In the northern hemisphere latitude 
34° corresponds to a mean temperature of 19°5°. Between lati- 
tudes 34° and 57°, there is a greater difference between the tem- 
peratures of summer than of winter. The winters :n the south are 
not-colder, but the summers are considerably more so than in the 
northern hemisphere. On the coast of Patagonia (lat. 48°—58°) 
the mean heat of summer does not exceed 6°—8-2° ; while at St. 
Petersburgh and Umea it rises to 18°7° and 17° (lat 59° 56%, and 
63° 50’). At Chorruca in the Straits of Magellan (lat. 53°—54°) 
it snows almost every day during the summer, and the thermometer 
in December did not rise higher than 112°; whereas Von Buch 
observed it at latitude 70° in Lapland as high as 26°7. Cook and 
Forster did not observe the thermometer rise in south latitude 60° 
higher than 22°. In Lapland in the latitude of 70°, the fir grows 
to the height of 60 feet. Whereas at the Straits of Magellan, and 
in Staaten’s Land, much nearer the equator, scarcely any trees can 
