LETTER FROM J. W. SULLIVAN. 11 



Temperature of the Earth and Atmosphere at Edmonton at 9 a.m. 



Letter from J. W. Sullivan, Esq., on the subject of the accom- 

 panying Observations. Addressed to J. D. Hooker, Esq., M.D., 

 E.E.S., F.L.S. 



Fort Edmonton, Saskatchewan, 

 January 10th, 1859. 



Sib, — I have taken the liberty of forwarding the accompanying 

 sheet of Thermometrical Observations on the soil, which I made 

 on the route of the expedition during the last season. 



As M. Bourgeau's time was wholly taken up in collecting and 

 drying his botanical specimens, I undertook the observations when 

 opportunity permitted, and carried them on according to the di- 

 rections you gave him. 



I would have willingly made a more extensive series, but the 

 plan of our travels in the Eocky Mountains, when the party was 

 broken up and dispersed in different directions, put a stop to the 

 work. However, I will endeavour during the ensuing season to 

 obtain as large a number as possible. They will no doubt be of 

 some value, especially if we are to extend our explorations to the 

 shores of the Pacific Ocean. 



I have the honour to be, sir. 



Your obedient servant, 



J. W. Sullivan, 

 Secretary to the Expedition. 



