126 On the Temperature of the Atmosphere at Fort Simpson- 



.Abstract of the Th< rmometrical Register kept at Fort Simpson in 

 the years 1837-38 and 1838-39. (Means of two successive years.) 

 (Temperature for September interpolated in calculating the 

 Mean Temperature of Autumn.) 



Abstracts of the, Thcrmomrfricid Register kept at Fort Simpson in 



1837-8, 1838-9, and 1839-40. (Means of three successive years.) 



(September interpolated in calculating the Mean Autumn Heat.) 



