368 ASSINKIBOLtfE AND SASKATCHEWAN EXPEDITION, 



The summer temperature of Eed Eiver, and the ab- 

 sence of frosts during that season, determine its fitness 

 for agricultural purposes. The following table exhibits 

 a comparison, based upon one years observation only, 

 between the summer temperature of the Settlement and 

 various other well known places in Canada : — 



Summer temperature at Red River Settlement . . 67*76 



Montreal, Canada 66-62 



Quebec . . 62-91 



Toronto 63-98 



Assuming that the annual mean of 34*38 deduced from 

 the following tables is within two or three degrees of what 

 would be the results of several years' observation, we find 

 upon inspection of Dove Tables, that there is not one 

 locality within the limits of the United States where so 

 low an annual mean occurs. At Kasan (Eussia) lat. 

 55°48, long. 49°7, the mean of ten years was 35°45, and 

 the difference between the hottest and coldest months 

 61°33, while at Eed Eiver the difference was 82°15 in 1855. 

 The difference between summer and winter at Kasan was 

 56°00 ; at Eed Eiver 74°61. At Orenburg, lat. 50°46, 

 or in nearly the same latitude as that part of Eed Eiver 

 Settlement where these observations were made, and in 

 long. 55°6, the annual mean is 35°6 ; the difference be- 

 tween the hottest and coldest month 66°38, and the 

 difference between winter and summer 59°66. The fol- 

 lowing table will exhibit this relation at a glance : — 





Latitude. 



Longitude. 



Annual 

 Mean. 



Difference 

 between 

 Hottest and 

 Coldest 

 Months. 



Difference 

 between 

 Summer 



and 

 Winter. 



Red River Set- 

 tlement (1855) 

 Kasan, Russia 



50°15' 

 55-48 



97 C W. 

 49°7 E. 



34- 38 



35- 45 



82-15 

 61-33 



74-61 

 56-00 



Orenburg . . 



50-46 



55-6 E. 



35-06 



66-38 



59-66 



