ILLUSTRATIONS (20). SOUTHERN TEMPERATURE. 109 



lichens, Terras de Desolation, as they have been called by 



French navigators, lie far to the north of the Antarctic Polar 



Circle; whilst in the Northern Hemisphere, in 70° lat., on the 



extrcmest verge of Scandinavia, fir-trees reach a height of 



more than 60 feet.* If we compare Tierra del Fuego, and 



more particularly Port Famine, in the Straits of Magellan, 



53° 38' lat., with Berlin, which is situated one degree nearer 



38° 9 

 the equator, we shall find for Berlin, 4 7°. 3 roQ ' ; and for 



Port Famine, 42°. 6 -^ Fahr. I subjoin the few certain 



data of temperature which we at present possess of the tempe- 

 rate zones of the Southern Hemisphere, and which may be 

 compared with the temperatures of northern regions in which 

 the distribution of summer heat and winter cold is so unequal. 

 I make use of the convenient mode of notation already explained 

 in which the number standing before the fraction indicates 

 the mean annual temperature, the numerator the winter, and 

 the denominator the summer temperature. 



Places. 



Sydney and Paramatta 

 (New Holland) . . 



Cape Town (Africa) . 



Buenos Ayres . . 



Monte Yideo 



• • » 



Hobart Town (Van 

 Diemen's Land) 



Port Famine (Straits of 

 Magellan) . . . . 



South 

 Latitude. 



33° 50' 



33° 55' 



34° 17 



31° 54' 



42° 45' 



53° 38' 



Mean Annual, Winter, and 

 Summer Temperatures. 



64°.6 



65°.7 



62°.4 



67 c 



52°.5 



42°.6 



54°.5 



77°.5 

 58°.5 



73°.2 



52°.5 



73°.0 



57°.4 



77°.5 

 42°.l 



63°.0 

 34°.7 



50°.0 



* Compare Darwin in the Journal of Researches, 1845, p. 244, with 

 King in vol. i. of the Narr. of the Voyages of the Adventure and the 

 Beagle, p. 577. 



