TO YELLOWSTONE NATIONAL PARK. 
45 
Determination of latitude by cirewm-meridian altitudes. 
Station, Camp Bakor, Montaua.—Date, August 1, 1875.—Object observed, @.—Sextant, Speucer Browning; 6536.—Index error, — 33//.—Chro- 
nometor, Arnold & Dont, 1362.—Observer, Wood.—Computer, Wood.—Bar., 25'".20,—Ther., 85°, 
: in? Obs'd 2 cir- | Obs’d  alti- f 
pinay Mer. dist. asin te cos l cos D|Red. tomer)  cum-mori- | tudes, cor- | True alti- a es Lat. deduced 
sheoa =p. sin 00s & in arc = 2. dian alti- | rected for | tudes=a. zaA. |= 90°+D—A. 
ki =k, tudes, index error. ea 
hom. 8. ou u oo ° , bts ° / au ° / “ fo) vi “ ° , “ 
114 17, 6 09 74.3 1 41 | 122 05 00 61 02 13 GL 17 40 61 19 21 46 40 44 
14 53.5 5 33 60.5 1 22 | 123,08 30 61 33 59 61 17 50 61 19 12 46 40 53 
15 40.5 4 46 44.6 1 Ol} 122 06 40 61 03 03 61 18 30 61 19 31 46 40 34 
16 26, 4 00 31.4 43 | 123 09 40 Gl 34 34 61 18 25 61 19 08 46 40 57 
16 48. 3 38 26. 0 35 | 122 06 40 61 03 03 61 18 30 61 19 05 46 40 60 
1725 3 05 18.7 2 25 | 123 10 30 61 34 59 61 18 50 61 19 15 46 40 50 
17 49. 2 37 13.4 cory 18 | 122 07 20 61 03 23 61 18 50 61 19 08 46 40 57 
18 33.5 1 53 7.0 ot 9] 123 10 40 61 35 04 61 18 55 61 19 04 46 40 61 
19 11.5 115 3.0 a. 4/122 07 40 61 03 33 61 19 00 61 19 04 46 40 61 
19 40. 46 1.0 3 1] 123 11 10 61 35 19 61 19 10 61 19 11 46 40 54 
20 13.5 13 0.0 & 0} 122 08 60 61 03 43 6L 19 10 61 19 10 46 40 55 
20 44. 18 0.0 = 0/123 11 10 61 35 19 61 19 10 6l 19 10 46 40 55 
21 09.5 43 10 A 1 | 122 07 50 1 03 36 61 19 03 61 #19 04 46 40 61 
21 40.5 114 3.0 4] 123 11 00 61 35 14 61 19 05 61 19 09 46 40 56 
22 04. 1 38 5.2 et 7 | 122 07 50 61 03 36 61 19 03 61l 19 10 46 40 55 
22 36 210 9.2 sg 12 | 123 10 40 61 35 04 61 18 55 6L 19 O7 46 40 58 
23 09. 2 43 14.5 a 20 | 122 07 10 61 03 18 61 18 45 61 19 05 46 40 60 
23 41. 315 20.7 3 26 | 123 10 10 61 34 48 61 18 39 61 19 07 46 40 58 
24 25, 3 59 31.1 o 42 | 122 06 40 61 03 03 6L 18 30 61 19 12 46 40 53 
25 02. 4 36 41.5 56 | 123 09 20 GL 34 24 61 18 15 61 19 11 46 40 54 
25 38. 5 12 53, 1 1 12] 122 05 30 61 02 28 61 17 55 61 19 07 46 40 58 
26 05. 5 39 62.7 1 25 | 123 08 30 61 33 59 61 17 50 61 19 15 46 40 50 
26 29.5 6 03 TLY 1 38 | 122 04 40 61 02 03 61 17 30 61 19 08 46 40 57 
1 26 48.5 6 22 79. 6 1 48} 123 07 40 61 33 34 61 17 2 61 19 13 46 40 52 
24)15 12] 122 38 20 
33 
38 
2) 122 37 47 
61 18 53.5 
21 
61 18 32.5) 
38 
61 19 10.5) 
108 00 04.7 
46 40 54. 2! 
VEG BU Sache Secv re cach iys ase sasd seswea atoms one @adenbia folcisy ate hiale slatare ocaelansenie Mare be Ses Slam diese eaves ee A ed Se bentoesa1d's ame Shara baa erree 46 40 54.4 
90 00 00. 0 fo} a “uw ~_ mM &. t “ ¥ aw 
18 00 047 App.lat.=t= 46 40 45. cos 9, 83638 Chron. correction 1 14 22,38 Semi-diam.—15 48 +15 48 
—_—_- Dec. = 18 00 04.7 cos 9, 97820 Equation of time 6 03. 83 Refraction — 25.2 — 25.2 
108 00 04.7 a = 61 18 30. cos 0.31867 — Parallax + 4.2 4 4,2 
61 19 21. > 1 20 26.21 —_— ——- 
= 0. 13325 —16 0% + 15 27. 
46 40 44. 
