Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean: Vol. 2, Pt. 4

APPENDIX L.-ASTRONOMICAL OBSERVATIONS.
ASTRONOMIICAL OBSERVATIONS-Continued.
Determination of latitude, Jfarch 16, 1854.-Double altitucles of Observations for the variation of comnpass.
Sirius, in the west.
Magnetic amplitude of the Sun's centre at his setting, 17~ 30'
south.
Time. Altitudes.
hDeterminiation of timne, Mfarch 10, 1854.-Equal altitudes of the
Suni's u)p)er limnb.
8 25 49 70 26 30,8on's upper limb.
8 27 38 70 61 40
8 30 27 69 24 20
8 33 46 68 37 30
Timtne, a. in.
8 31 27 69 1)) 20 __ __
d.
98
(98
98
98
098
98
99)
99
h.
10
1()
1 0
110
1 0
lO
10
S.
(C9
03
47
36
'9
14
(O7
53
Time. Altitudes. 10 29 53 99 iS Os I (8 66
Thermometer 67~ Fahrenheit.
10 43 18 85 18 50
10 44 35 85 51 20
10 47 59 87 16 30 Su,i's u])per limb.
10 49 19 87 51 20
10 51 13 88 38 58
Determinationz f time, 8I2ach 11, 1854.-Equal altitudes of the
SUnI'S uler limtb.
Time, a. m.
Thermometer 52A~ Fahrenheit.
h. 271. s.
t10 34 (4
1.0 34 58
10 35 52
10 36 49
10 37 48
10 38 44
10 39 45
10 40 43
810 41 40
10'42. 43
Determination of latitude.-Do?ible altitude of Spica Virjyinis,
in the east.
Time.
h. 9n. s. d.
11 14 02 76
Thermometer 52.1t F'ahren
NOTE.-This star was so near the moon,
get any more observations upon it.
Thermometer 73~ Fahrenheit.
Determination of time, Mairch 9, 1854. —Egtual altitudces of the
Sun's upper linb.
Time, a. m.
h. M..S.
1 15 58
1 15 5)
1 14 17
1 13 3i
1 12 46
1 12 01
1 II 13
1 10 11
1 09 30
1 08 35
Thermometer 83~ Fahrenheit.
i
I
124
Altitudes.
Titne, p. in.
h.
I
I
971.
24
25
25
6
27
28
29
29
oo
1'2
2
31
47
57
08
.18
S.
(15
25
45
55
05
('5
5
05
M.
i:.3
1 3
1.4")
1 1
1 0
(!9
(i8
()8
S.
59
oll
17
24
33
54
.55
06
I
I
I
I
I
I
i
Altitudes.
Titne, p. m.
h. s.
1 00 52
12 59 53
12 58 51
12 58 O()
12 57 03
12 56 02
12 55 04
12 54 08 -
12 53 05
12 52 04
(I.
Jill
lot
101
I ( I
I(',2
](12
102
102
102
103
19
3 1
43
54
06
1.8
29
4 1
5 1
03
S.
55
2 -a
45
25
21-)
25
35
(',5
35
45
i
i
i
i
i
i
i
i
i
i
i
Dete?-nzination of
ti?ite, 17farcli 15, 1854.-Elqual altitude,3 of the
Suiil,3 ttlper limb.
Time, a. ni.
Altitudes.
Time, p. na.
h. m. s.
1 16 44
clo-Lids.
clouds
I 1 467
1 1 320
1 1 228
1 1 136
1 1 04 0
1 09 - 53
lost.
Altitudes.
Time, p. m.
h.
10
10
10
I 0
10
10
10
10
10
10
d.
)6
96
96
97
97
97
97
97
98
98
h.
10
10
10
I 0
10
10
10
1-0
10
10
M.
19
20
2t
21
22
23
2 1
25
26
27
S.
23
25
1.3
.59
50
42
31
2 i2
1 5
07
,ni.
1"9
43
55
05
1 I,'
28
41.
52
04
1 6
S.
85
35
05
35
05
55
1 -)
15
3 )
C15,
d.
I()o
too
i(Ilo
I()O
101
lot
101
i(Ill
lot
102
M.
17
1 8
1 9
211)
21
21
2 -)
23
24.
25
S.
55
4:3
35
11
02
47
37
:38
20
17
M.
24
38
M'IO
59
1 2
22
34
48
59
12
S.
40
20
10
10
20
40
50
50
20
20
Thermometer 770 Fahreriheit.