

Henry Draper- 

 Ti 



—Aslrono 



rn/ca? Observations 

 tinued. 











3mr . 



A*.™. 



SBPT.MBBB. 



OCTOBBB. 



NO^HBBB. 



DBCBMBBB. 





a 



v.; 



^i° 



:;: ! ; 



?£ 



s 



IS 



'Lr 



tt 



v.;: 



S 





!s~ 



* 



i: 



i 



" 



i 



» 



;: 



II 



2 



: 



2 



: 



From Table I, i 

 the past five vea 

 Table II. There is 



appears that the average annual rainfall for 

 s is 18 T y n inches, distributed as shown in 

 no perfectly dry month, the nearest appn >aco 

 immer. The cloudy days are 194 per annum, 

 lg similar to the rainfall. 



&>' 



A former pupil of mine, and graduate of the University, Dr. 

 Benedict, informed me that the Mormons believed tl 

 had much increased since their community had settled in Utah, 

 and this seems to be borne out by the statement that whereas 

 formerly three gallons of Salt Lake water produced on evapora- 

 tion one gallon of salt it now takes four gallons to produce 

 the same quantity. 



On the whole it is doubtful whether there would be enough 

 advantage in bringing a large telescope to this region to make 

 it worth while to encounter the labor and expense. 



On August 30th, having taken an escort we moved south 

 from Fort Steele, latitude 41° 48', longitude 107° 09', along the 

 north fork of the Platte Eiver into the main range of the 

 Eocky Mountains. During the fifteen days' expedition there 

 were only two nights on which we saw clouds enough to pre- 

 vent astronomical working, and only one thunder storm of any 

 moment took place in our immediate vicinity; about one- 

 quarter of an inch of rain fell. The sky was rarely perfectly 



