10 TABLE OF LATITUDES. 
III.— Table of latitudes on the line of the forty-first parallel of north latitude, explored for the 
Pacific railway, 1854. 
Sr: 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 be remedied in Salt Lake City. 
Very respectfully, 
SHEPPARD HOMANS, 
In charge of Astronomical Department. 
First Lieut. E. G. BECKWITH, 
. S. A., Commanding Expedition. 
Geographical positions from Green river, Utah Territory, to Fort Reading, California, via Salt 
Lake City. 
Date. Locality. Star. Double mer. alt. | Index error.| Corrected alti- Deduced lati- | Latitude of 
tude. -~ tude. camp. 
1854. rou 
April 15 | Muddy cre **| Alpha Hydra .. 81 12 40 49 99 41 15 43 
16 | Bear rive do 81 98 40 50 54 41 07 18 
17 | White Clay creek do. 8] 47 41 00 34 40 57 38 
1 ber do 81 57 41 05 34 40 52 38 
1853. : 
sip os Salt Lake City >. | Sun 52 49 26 39 51 yr a caa 40 45 37 
May 9 | Lone Rock valley Spica 78 1 05 1 40 30 46 
12 | Camp 8, Granite mountain | 78 4 93 a RE sae INA 40 12 37 
16 | Camp H o 79 ( 30 £ SX 1 en 
] do. Polaris 31 : 40 06 14 05 55 
Camp NE ALL ces duse Gannds sees LIMES 1 40 04 29 oom T 
0. Spica..... ) C 1 40 04 
Willow spring E 45 € 40 14 is €— 
3 do - 1 40 14 09 40 14 14 
Camp 14 E SEES -— hls 
pi : sish 
- ) 4 40 23 
Franklin river E 40 34 3 eee 
d 3 ) 40 35 01 40 34 52 
D z w. 40 4919. E e ouk 
FAS Se E 54 € 40 41 39 0 
aa : 2 | 238 | 935 
<a. o T 06 90 40 29 39 40 99 49 
mp 4 40 19 36 DIDIT 
.. do 3 i 1 40 19 90 40 19 98 
Camp 94... erede oe —— sees č 46 23 WA Ree 
zd e x 1 40 14 44 40 14 44 
< amp 95. $ 49 43 11 
June 3 | Camp 28 x 45 40 13 93 
4 Comp 99 hn i 40 17 45 
on ris ) 4U 32 34 vest 
Spica...» 52 31 : 
yet WOON WE Ru. Co uera es E E § ni : 49 ( 
Mud lake d 4 x AQ 41 4 
) | Madelin Pass..... a 52 4 3 40 4 
do do. 03 4 40 38 : 
Camp 45. do. 43 dė ; E 40 48 4 
Camp 46. do. SEE — T E 4 40 ¢ 
Camp 47 do. 4H ered Peer eae E 40 £ 
out s do. HEN Leno rei - 4493 
Camp 49. do. 4 41 04 4 
Camp 50 do. 23 4 4 
Camp 5l o 37 40 : ? 
July Ca 52. do. 54 4 D 40 43 
Summit eree Antares ... .. 46 48 € 99 : 40 31 í 
Roop's ranch do 47 01: 98 : 94 4 
Shore of Honey lake do. 47 09 ( 22 : i 90 : 
Black Butte do 46 33 4 ( 40 38 : 
1 'olf ereek do. 46 40 £ 40 35 ( 
15 | Camp do. 46 28 : 40 4 
17 | Sacramento river do 46 90 4 4 ) 
18 de. do. 4 ( € 40 41 
19 do 45 47 ( 3 41 02 § 
20 Bore do 45 45 4 38 41 03 00 
i Saa arat geoutu of Unao creek do. 45 58 2 ( 40 56 35 
3 5 Near F ort Reading. 5 o. 46 51 4 93 : 40 30 02 
