24 



NOTE UPON THE 



of Canton at 22, 9; and if compared with the cities of Europe and 

 Africa, where the temperature is analogous to that of those four cities, 

 the following table will be found : 



Asia. 



Latitude. Mean 



Temperature. 



Europe and 

 Africa. 



Latitude. Mean 



' Temperature. 



Peking 39 54' + 12, 7 



Nangasaki 32 45' -f- 16, 



Canton 23 8' + 22, 9 



Macao 22 12' -f 23, 



Paris 48 50' + 10, 6 



Lyons 45 40' -f- 13, 2 



Montpellier 43 36' -f 15, 2 



Toulon 43 7' -f 15, 8 



Rome ...41 53' + 15, 8 



Naples 40 50' -f 17 4 



Algiers 36 58' +21, 1 



Cairo 30 2' + 22, 4 



From this comparison it may be concluded that the mean tempera- 

 ture of Peking, and of the north of China, is sensibly equal to that 

 of Lyons, and more elevated than that of Paris, by two degrees. 

 The central provinces of China, between the Yellow and Kiang 

 rivers, being situated under latitudes little different from that of Nan- 

 gasaki, their mean temperature ought to be froiri 15 to 16 degrees, 

 or about that, of our Provence. The mean temperature of Macao 

 and Canton is more elevated than that of Algiers, by two degrees, of 

 which the geographical position is more northern by 15. It ap- 

 proaches that of Cairo, which is situated in 30 of latitude, and 

 which is found farther north by 7 to 8, than the two Chinese Cities. 

 But, it must be observed, with M. de Humboldt, that the tem- 

 perature of winter and that of summer, appears to differ much more in 

 Asia and America, than in Europe and Africa. Thus, at Peking, 

 after Amyot, who observed there, for six years, the mean temper- 

 ature of the warmest month is +29, 1 ; the summer, like that of 

 Naples, whilst the mean temperature of the coldest month is 4, 

 and the thermometer remains there for three months below zero, like 

 at Copenhagen, more north than Peking by 15 in latitude. Accord- 

 ing to the Dutch, at Nangasaki, in 32 of latitude, the temperature 



