70 TABLE OF LATITUDES. 
III.—Table of latitudes on the line of the forty-first parallel of north latitude , explored for the 
Pacific railway, 1854. 
Sir : In the following table of geographical positions, the latitudes are all deduced from 
meridional observations, and, when practicable, both north and south culminating stars were 
observed, for the purpose of eliminating instrumental and other errors. 
The astronomical instruments were the same as those used last year with Captain Gunnison, 
and pronounced by him entirely inadequate for the determination of longitude. They were, 
besides, very much out of repair and adjustment when we started from Westport—defects 
which could not he remedied in Salt Lake City. 
Very respectfully, 
SHEPPARD HOMANS, 
In charge of Astronomical Department. 
First Lieut. E. G. Beckwith, 
U. S. A., Commanding Expedition. 
Geographical positions from Green river, Utah Territory, to Fort Reading, California, via Salt 
Lake City. 
