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La 'tude, Longitude, West, Dist. fr.
Place.

North.
in degrees. in time.

Wash. h. m. s.

Miles. Taunton (Trin. Cong. Ch.),

Mass. 41 54 1 71 5 554 44 23.6 415 Toronto or York (Observ.), C. W. 43 39 35 79 21 305 17 26 500 Trenton,

N. J. 40 14 74 46 30 4 58 36 166 Troy,

N. Y. 42 44

73 40 4 54 40 383 Tuscaloosa,

Ala. 33 12 87 42 15 50 48 858 University of Virginia, . Va. 38 2 3 78 31 295 14 5.9 124 Utica (Dutch Church), N. Y. 43 6 49 75 13 15 0 52 383 Vandalia,

Ill. 38 50 89 2 15 56 8 781 Vevay,

Ind. 38 46 84 59 5 39 56 556 Vincennes,

Ind. 38 43 87 25 5 49 40 693 WASHINGTON (Capitol), D. C. 38 53 34 77 1 305 8 6 Washington,

Miss. 31 36 91 20 6 5 20 West Point (Military Academy),N. Y. 41 23 31.2 73 57 31 4 55 50.1 1146 Wheeling,

40 7 80 42 5 22 48. | 264 Williamstown (Cong. Ch.),' Mass. 42 42 49 73 13 104 52 526 406 Wilmington,

Del. 39 41 75 28 15 152 108 Wilmington,

N. C. 34 11 78 10 5 12 40 416 Worcester (Ant. Hall), Mass. 42 16 17 71 48 134 47 13.3 394 York,

Me. 43 10 0 70 40 4 42 40 500 York, .

Pa. 39 58 76 40 5 6 40 87 Yorktown,

Va. 137 13 76 34 15 6 16

Va.

.

LATITUDE AND LONGITUDE OF THE PRINCIPAL FOREIGN

OBSERVATORIES.

[The Longitudes are from Greenwich.)

[graphic]

53 32 45 N.

0 39 46.6 E. 54 21 12.7 N. 0 26 35.5 W. 52 31 13.5 N. 0 53 35.5 E. 50 51 10.7 N. 0 17 29.0 E. 52 12 51.8 N. 0 0 23.5 E. 33 56 3 s. 1 13 55.0 E. 58 22 47 N. 1 46 55 E. 53 23 13 N. 0 25 22 W. 55 57 23.2 N.0 12 43.6 W. 51 31 48 N. 0 39 46.5 E. 51 28 39.0 N. 0 0 0.0 54 42 50 N. 1 22 0.5 E. 48 8 45 N. 0 46 26.5 E. 48 50 13 N. Q 9 21.5 E. 59 56 31 N. 2 1 15.8 E. 41 53 52 N.0 49 54.7 E. 45 4 6 N. 0 30 48.4 E. 48 12 35 N. 1 5 31.9 E.

Additional Latitudes and Longitudes, determined chiefly by Officers of the U. S.

Topographical Engineers.

Longitude West from Daie of
Names of Places.

Latitude. Greenwich, determ- Authority.
in degrees., in time. ination.

h. m. s. *

18 50 15 102 5 33 6 48 38 Acapulco,

Humboldt. Agua Nueva, Mexico,

25 11 43.6

1847 Hughes. Bellevue, Am. Fur Co.'s trading post,

right bank of Missouri River, 41 8 24 95 47 46 6 23 11 1832 Frémont. Bent's Fort,

38 2 53 52 4

1846 Emory. Brazos Santiago,

126 6 0
97 12 0

1846 Hughes. Canadian River, Head-waters of, 37 1 33 104 37 32

1845 Lieut. Abert. Cape Island, Lake of the Woods,

49 36 42

1823 S. H. Long. Cedar Keys, Depot Island,

29 7 27 82 56 12 Corpus Christi, Texas,

27 47 17.8 97 27 2.5

1846 Capt. Cram. Dalles of the Columbia, Miss. Station, 45 35 55 120 55 0

1813 Frémont. Falls of St. Anthony, U. S. Cottage, 44 58 40 93 10 30 6 12 42

Nicollet. Falls of the St. Croix,

45 30 10 92 40 0 6 10 40 False Washita, Head-waters of, 35 25 41 101 5 0

1845 Lieut. Abert. Fort Boisée, Oregon,

43 49 22 116 47 3

1813 Frémont. Fort Brady, Mich.,

46 29 55

1823 S. H. Long. Fort Crawford,

13 3 31 90 52 30

1823 S. H. Long. Fort Gibson,

35 48 4 95 9

1845 Lieut. Abert. Fort Hall,

43 1 30 112 29 54

1843 Frémont. Fort Laramie,

142 12 10 105 21 10 7 1 24.6 1842 Frémont. Fort Leavenworth, Landing,

39 21 14 94 44 0 16 18 56

1846 Emory. Fort Mackinac,

15 51

1823 S. H. Long. Fort Nez Percé, Oregon,

46 346

1843 Frémont. Great Salt Lake, Island in,

41 10 42 112 215

1843 High Plateau between waters of the Atlantic and the Gulf of California,

42 2 3 107 3 0

1843 Jalapa, Mex., 19 30 8 99 14 54 6 37 0

Humboldt. Kanzas River, Mouth of,

39 6 3

94 32 54 16 18 11.6 1842 Frémont. La Vaca, Texas,

28 37 0

1846 Hughes. Missouri River, Mouth of,

33 51 36 90 0 40

1820 S. X. Long. Monclova, Mex.,

26 54 0

101 39 18 6 46 37.2 1846 Hughes. Mexico, City of, Mex., 19 25 45 101 25 30 6 45 42

Humboldt. Monterey, Mex.,

125 40 13 100 25 36

1846 Hughes. Monterey, California,

36 36 24 124 12 498 16 51 1835 Beechey. Nebraska or Platte River, Junction of North and South Forks,

11 5 5 101 21 24 6 45 25.6 1842 Frémont. Nueva Helvetia, Cal.,

33 34 42 120 nearly.

1843 Parras, Mex.,

25 25

1846 Hughes. Pass Washington,

36 3 22 108 56 07 15 44 1849 Lt. Simpson. Perote, Mex., 19 23 57 99 28 39 6 37 55

Humboldt. Platte River, Mouth of,

41 3 13

1920 S. H. Long. Junction of N. and S. Forks, 41 5 5 101 21 24 6 45 25.6 1842 Frémont. Popocatapetl,

18 59 47 100 53 15 6 43 33 Prairie du Chien, Am. Fur. Co.'s House, 13 3 6 91 9 19.5 6 4 37.3

Nicollet. Puebla de los Angelos, 119 0 15 100 22 45 6 41 31

Humboldt. Racine, Wisconsin,

42 49 33 87 40 22

1841 Maj.Graham. Remedios, de los, Harbor,

57 24 15
138 14 5 9 12 56

Malespina. Sabine River, Texas, entrance of South or outer extremity of Bar,

29 40 48
93 49 3

1840 Maj.Graham. Saltillo, Mex.,

25 26 22 101 1 45 6 44 7 1847 Hughes. San Antonio, Texas,

29 25 30 98 52 30 6 42 48 1846 San Blas, Arsenal,

21 32 34 107 35 48 17 10 23 1835 Beechey. San Diego, Public Square,

32 45 0 117 11 0 17 48 44 1846 Emory. Santa Fe, New Mexico,

35 41 6 106 2 30 7 4 10 1849 Simpson. Snake River, above American Falls, 142 47 5 112 40 13

1843 Frémont. San Francisco, Spanish Fort,

37 48 30 124 48 26 18 19 14 1835 Beechey. St. Croix River, Mouth of,

44 45 30
92 45 0 6 11 5

Nicollet. St. Joseph, 23 3 13 112 1 8 7 28

Chappe. St. Peter's River, Mouth of, 44 52 46 93 4 54 6 12 19.6

Nicollet. St. Vrajn's Fort,

40 16 52 105 12 23

1843 Frémont. Sweet Water River, N. Fork of Platte River, Mouth of,

12 27 18 107 45 27 7 II 1.8 1842 Tampico, Bar,

22 15 30 100 12 15 6 40 49 1817 Ferrer. Tlamath Lake,

42 56 51

1943 Frémont. Trinity Bay, Oregon,

1850 Lt.M'Arthur. Vera Cruz, Mex.,

40 5 50

19 11 52 98 290 16 33 56 Victoria, Texas,

128 46 57

1846 Hughes. * Nicollet's determinations were made from 1836 to 1840.

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D.

1 3 5 7

10.23

11 13 15 17 19 21 23 25 27 29 31

At Apparent Noon at Greenwich.
JANUARY

FEBRUARY
Semi-diam. S. D. culm.

D. | Semi-diam. S. D. culm.
m. S.

m. s.
1
16 17.3
1 11.01

16 14.7

1 8.10
17.2
10.92

14.4

7.87
17.2
10.81

14.1

7.64
17.2
10.69

13.7

7.41
17.1
10.55
10 13.4

7.19
17.0
10.40
12 13.0

6.97
16.9

14 12.6

6.76
16.8
10.05

16
12.2

6.55
16.6
9.86
18 11.8

6.35
16.5
9.66
20 11.4

6.15
16.3
9.45
22 10.9

5.96
16.0
9.24
24 10.4

5.78
15.8
9.02

26
9.9

5.61
15.5
8.79
28 9.5

5.45
15.3
8.56
30 9.0

5.30
15.0

8.33

Sidereal
Equa. of Timel

Sidereal Declination

Declination Equa. of Time
to be added to

D.
Time at

to be added to Time at South.

South.
Appar. Time. mean noon.

Appar. Time. mean noon.
O
11
m. s.

Obliquity of the Ecliptic.
1st, 230 271 and 25.47" ; 11th, 25.62"; 21st, 25.83"

31st, 26.07".

Horizontal Parallax.
1st, 8.721; 11th, 8.7211; 21st, 8.71"; 31st, 8.70".

Obliquity of the Ecliptic.
10th, 230 271 and 26.321; 20th, 26.56".

Horizontal Parallax.
10th, 8.691 ; 20th, 8.67".

D.

h. m.
s.
O 1
m. 8.

8. 23 2 14.3 3 43.96 18 42 9.82 1 17 10 38.1 13 51.88 20 44 23.06 22 57 9.8 4 12.35 18 46 6.37 2 16 53 28.6 13 59.67 20 48 19.62 22 51 37.8 4 40.40 18 50 2.93

16 36

1.4 14 6.63 20 52 16.17 22 45 38.5 5 8.07 18 53 59.49

16 18 17.0 14 12.76 20 56 12.73 22 39 12.1 5 35.33 18 57 56.05 5 16 0 15.7 14 18.07 21 09.28 22 32 18.8 6 2.13 19 1 52.60 6 15 41 58.0 14 22.54 21 4 5.84 22 24 58.8 6 28.44 19 5 49.16 7 15 23 24.2 14 26.19 21 8 2.39 22 17 12.3 6 54.25 19 9 45.72 8 16 4 34.9 14 29.01 21 11 58.95 22 0 59.5

7 19.53 19 13 42.27 9 14 45 30.5 14 31.01 21 15 55.50 22 0 20.7 7 44.23 19 17 38.83 | 10 14 26 11.3 14 32.21 21 19 52.06

h. m.

1 2 3 4 5 6 7 8 9 10

11 12 13 14 15 16 17 18 19 20

21 51 16.2 21 41 46.2 21 31 51.0 21 21 30.8 21 10 46.0 20 59 36.9 20 48 3.8 20 36 7.0 20 23 46.8 20 11 3.6

8 8.34
8 31.85
8 54.72
9 16.94
9 38.48
9 59.34
10 19.51
10 38.98
10 57.73
11 15.74

19 21 35.39 | 11
19 25 31.95 12
19 29 28.50 13
19 33 25.06 14
19 37 21.61 15
19 41 18.17 | 16
19 45 14.73 | 17
19 49 11.28 18
19 53 7.84 19
19 57 4.40 | 20

14 6 37.8
13 46 50.4
13 26 49.5
13 6 35.5
12 46 8.8
12 25 29.9
12 4 39.0
11 43 36.7
11 22 23.3
11 0 59.3

14 32.61
14 32.22
14 31.05
14 29.12
14 26.44
14 23.03
14 18.90
14 14.08
14 8.57
14 2.40

21 23 48.61 21 27 45.16 21 31 41.72 21 35 38.27 21 39 34.83 21 43 31.38 21 47 27.93 21 51 24.49 21 55 21.04 21 59 17.59

21 22 23 24 25 26 27 28 29 30 31

19 57 57.7
19 44 29.5
19 30 39.2
19 16 27.3
19 1 54.1
18 47 0.0
18 31 45.4
18 16 10.6
18 0 16.0
17 44 2.2
17 27 29.1

11 33.00
11 49.53
12 5.31
12 20.31
12 34.53
12 47.98
13 0.64
13 12.51
13 23.57
13 33.82
13 43.26

20 1 0.95 21
20 4 57.51 | 22
20 8 54.06 | 23
20 12 50.62 | 24
20 16 47.18 25
20 20 43.73 | 26
20 24 40.29 | 27
20 28 36.84 | 28
20 32 33.40 29
20 36 29.95
20 40 26.51

10 39 24.9
10 17 40.6
9 55 46.8
9 33 44.0
9 11 32.4
8 49 12.5
8 26 44.7
8 4 9.5
7 41 27.2

13 55.58
13 48.13
13 40.07
13 31.40
13 22.16
13 12.35
13 1.98
12 51.07
12 39.64

22 3 14.15
22 7 10.70
22 11 7.25
22 15 3.81
22 19 0.36
22 22 56.91
22 26 53.47
22 30 50.02
22 34 46.57
Time till 16th. mean noon.
0
m. S.

D.

2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32

At Apparent Noon at Greenwich.
MARCH.

APRIL.
Semi-diam. S. D. culm.

D. Semi-diam. S. D. culm. m. s.

1

m. S.
16 9.0
1 5.30

1 16 0.9 1 4.41
8.5
5.16

3
0.4

4.45
8.0
5.03

5 15 59.8

4.50
7.5
4.92

7 59.3

4.56
7.0
4.81

58.8

4.63
6.4
4.72

58.2

4.71
5.9
4.63
13 57.7

4.80
5.4
4.56
15 57.2

4.90
4.8
4.50
17 56.6

5.01
4.3
4.45
19 56.1

5.12
3.7
4.42
21 55.6

5.24
3.2
4.39
23 55.1

5.37
2.6
4.38
25 54.5

5.51
2.0
4.38
27 54.0

5.65
1.5
4.39
29 53.6

5.80
0.9
4.41
31 53.1

5.95
Sidereal

Sidereal Declination Equa. of Time

Eq. of Ti. to be

Declination
to be added to
Time at D.

added to Ap.

Time at
South.

North.
Appar.
Time. mean noon.

Obliquity of the Ecliptic.
22, 230 271 and 26.761; 12th, 26.91"; 22d, 26.99".

Horizontal Parallax.
2d, 8.659; 12th, 8.631; 22d, 8.61".

Obliquity of the Ecliptic. 1st, 230 271 and 27.01"; 11th, 26.981; 21st, 26.89".

Horizontal Parallax. 1st, 8.58"; 11th, 8.56"; 21st, 8.53".

D.

h. m.
s.
O
m. s.

h. m. s. 7 41 27.2 12 39.64 22 34 46.57 1 4 25 25.4

4 4.48 0 36 59.69 7 18 38.3 12 27.70 22 38 43.12 2 4 48 33.0 3 46.37 0 40 56.25 6 55 43.1 12 15.27 22 42 39.68 3 5 11 35.4 3 28.37 0 44 52.80 6 32 42.1 12 2.35 22 46 36.23 4 5 34 32.3 3 10.50 0 48 49.35 6 9 35.7 11 48.96 22 50 32.78 5 5 57 23.3 2 52.79 0 52 45.90 5 46 24.1 11 35.13 22 54 29.33 6 6 20 8.2 2 35.24 0 56 42.46 5 23 8.0 11 20.86 22 58 25.89 7 6 42 46.4 2 17.86 1 0 39.01 4 59 47.7 11 6.17 23 2 22.44 8 7 5 17.6 2 0.68 1 4 35.56 4 36 23.6 10 51.08 23 6 18.99 9 7 27 41.6 1 43.71 1 8 32.11 4 12 56.1 10 35.62 23 10 15.54 || 10 7 49 57.9 1 26.98 1 12 28.67

ܢܚܕ ܟܬ ܒܝܘ ܤ ܗ ܗ ܙ ܤ ܘ ܘ

11 3 49 25.5 12 3 25 52.2 13 3 2 16.7 14 2 38 39.3 15 2 15 0.2 16 1 51 20.0 17 1 27 38.9 18 1 3 57.3 19 0 40 15.6 20 S. O 16 34.1

10 19.79
10 3.63
9 47.15
9 30.37
9 13.33
8 56.03
8 38.51
8 20.79
8 2.89
7 44.84

23 14 12.10 | 11
23 18 8.65 || 12
23 22 5.20 13
23 26 1.75 || 14
23 29 58.30 15
23 33 54.86 || 16
23 37 51.41 17
23 41 47.96 || 18
23 45 44.51 19
23 49 41.07 | 20

8 12 6.2 1 10.49
8 34 6.2 0 54.27
8 55 57.6 0 38.34
9 17 40.0 0 22.71
9 39 13.2 to 7.42
10 0 36.8

0 7.53 10 21 50.5 0 22.12 10 42 53.9 0 36.32 11 3 46.8 0 50.13 11 24 28.9 1 3.51

1 16 25.22 1 20 21.77 1 24 18.33 1 28 14.88 1 32 11.43 1 36 7.99 1 40 4.54 1 44 1.09 1 47 57.65 1 51 54.20

21 IN.0 7 7.0
22 0 30 47.2
23 0 54 26.2
24 1 18 3.7
25 141 39.2
26 2 5 12.5
27 2 28 43.3
28 2 52 11.1
29 3 15 35.5
30 3 38 56.3
31 4 2 13.1

7 26.66
7 8.39
6 50.04
6 31.62
6 13.16
5 54.69
5 36.22
5 17.77
4 59.35
4 40.98
4 22.69

23 53 37.62 21
23 57 34.17 | 22
0 1 30.72 | 23
0 5 27.27 | 24
0 9 23.83 25
0 13 20.38 || 26
0 17 16.93 27
0 21 13.48 || 28
0 25 10.04 29
0 29 6.59 | 30
0 33 3.14 || 31

11 44 59.8
12 5 19.3
12 25 27.0
12 45 22.6
13 5 5.7
13 24 36.1
13 43 53.4
14 2 57.2
14 21 47.3
14 40 23.3
14 58 44.9

1 16.46 1 28.96 1 41.00 1 52.56 2 3.63 2 14.20 2 24.27 2 33.83 2 42.87 2 51.38 2 59.36

1 55 50.75 1 59 47.31 2 3 43.86 2 7 40.41 2 11 36.97 2 15 33.52 2 19 30.07 2 23 26.63 2 27 23.18 2 81 19.74 2 35 16.29

D.

13579Hubu

At Apparent Noon at Greenwich.
MAY.

JUNE.
Semi-diam. S. D. culm.

D. Semi-diam. S. D. culm.
1 11
m. s.

1 1

m. s.
15 53.1
1 5.95

15 47.1

1 8.37
52,6
6.11

46.8

8,47
52.2
6.27

46.6

8.57
51.7
6.43

46.4

8.65
51.3
6.60
10 46.2

8.72
50.9
6.77
12 46.0

8.78
50.5
6.93
14 45.8

8.83
50.1
7.09
16 45.7

8.87
*49.7
7.25
18 45,5

8.89
49.3
7.41

20
45.4

8.90
49.0
7.56
22 45.3

8.90
48.6
7.71
24 45.2

8.88
48.3
7.86

45.1

8.85
47.9
8.00
28 45.1

8.81
47.6
8.13
30 45.1

8.75
47.3
8.25

32
45.0

8.68
Sidereal

Sidereal Declination Equa. of Time

to be subtr. fr. North.

Time at

D.
Declination Eq. of Ti. to be

Time at subtr. fr. Ap.

North.
Appar. Time. mean noon.

Time till 16th. mean noon. o 11

m.
h. m. s.

O 1

m. s.

h. m.

s. 14 58 44.9 2 59.36 2 35 16.29 1 22 0 59.5 2 34.38 4 37 29.52 15 16 51.7 3 6.81 2 39 12.85 2 22 9 6.2 2 25.33 4 41 26.08 15 34 43.4 3 13.72 2 43 9.40 3 22 16 49.7 2 15.90 4 45 22.63 15 52 19.6 3 20.10 2 47 5.96 4 22 24 9.9 2 6.12 4 49 19.19 16 09 40.0 3 25.92 2 51 2.51 5 22 31 6.6 1 55.99 4 53 15.75 16 26 44.4 3 31.21 2 54 59.07 6 22 37 39.6 1 45.55 4 57 12.30 16 43 32.3

3 35.95 2 58 55.62 7 22 43 48.8 1 34.80 6 1 8.86 17 0 3.5 3 40.15 3 2 52.18 8 22 49 34.1 1 23.78 5 5 5.42 17 16 17.6 3 43.79 3 6 48.73 9 22 54 55.3 1 12.50 5 9 1.98 17 32 14.1 3 46.88 3 10 45.29 10 22 59 52.3 1 0.97 5 12 58.53

Obliquity of the Ecliptic. 1st, 230 271 and 26.7811 ; 11th, 26.66" ; 21st, 26.55'';

31st, 26.47".

Horizontal Parallax.
Ist, 8.51" ; 11th, 8.491; 21st, 8.4711 ; 31st, 8.46".
son 3 STE

Obliquity of the Ecliptic.
10th, 230 271 and 26.45"; 20th, 26.47"; 30th, 26.56".

Horizontal Parallax.
10th, 8.45" ; 2014, 8.44"; 30th, 8.44".

19 21 23 25 27 29 31

D.

2 3 4 5 6 7 8 9 10

[blocks in formation]
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