. Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean . ldebaran, in the west. h. m. s. d. m. .s. 8 48 21 .77 19 10 8 49 45 76 42 50 8 51 29 75 57 50 8 52 58 75 21 10 8 54 07 74 59 50 Double altitudes of li Leonis, in the east. Time Altitudes. A. m. s. d. m. 8. 9 09 57 85 18 00 9 11 44 86 03 10 9 13 46 86 54 40 9 15 13 87 30 40 9 16 29 88 02 20 Thermometer 37° Fahrenheit. Determination of latitude, March 4, 1854.—Double altitudes ofAldebaran, in the west. Time. Altitudes. h. s. d. m. 8. 8 48
. Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean . ldebaran, in the west. h. m. s. d. m. .s. 8 48 21 .77 19 10 8 49 45 76 42 50 8 51 29 75 57 50 8 52 58 75 21 10 8 54 07 74 59 50 Double altitudes of li Leonis, in the east. Time Altitudes. A. m. s. d. m. 8. 9 09 57 85 18 00 9 11 44 86 03 10 9 13 46 86 54 40 9 15 13 87 30 40 9 16 29 88 02 20 Thermometer 37° Fahrenheit. Determination of latitude, March 4, 1854.—Double altitudes ofAldebaran, in the west. Time. Altitudes. h. s. d. m. 8. 8 48 21 ■ 77 19 10 8 49 45 76 42 50 8 51 29 75 57 50 8 52 56 75 21 10 8 54 07 74 50 50 APPENDIX L.—ASTRONOMICAL OBSERVATIONS—Continued. 119 Double altitudes of Capella, in the west. Time. Altitudes. h. m. s. d. m. s. 8 57 28 1C3 05 00 8 58 50 102 37 20 9 00 39 101 57 10 9 01 40 101 36 20 9 02 40 101 26 00 Double altitudes of 0 Leonis, in the east. Time. Altitudes. ft. m. s. d. TO. s. 9 09 57 85 18 00 9 11 44 86 03 10 9 13 46 86 54 40 9 15 13 87 30 40 9 16 29 88 02 20 Thermometer 37° altitude of Magnetic amplitude of the Suns centre at his setting, 20° south. Determination of time, March 4, 1854.—Double altitudes of tlieSuns upper limb. Time, a. m. 771. 26282930313334 s. 56232944561424 Altitudes. 771. 26455914294458 10 004000302030 Double altitudes of the Suns upper limb. Time, p. m. Altitudes. ft. 771. s. d. 771. s. 1 24 28 91 05 40 1 25 23 90 50 00 1 26 19 90 37 40 1 27 15 90 24 00 1 27 57 90 03 50 1 28 46 90 01 10 1 29 37 89 47 0(1 1 30 23 89 35 10 1 30 57 89 27 00 1 31 33 89 17 30 Thermometer 60° Fahrenheit. CAMP ON DELAWARE CREEK. Observations for the variation of the compass, Manh 7, 1854. Magnetic amplitude of the Suns centre at his setting 18° 00 00 south. Variation 11 53 00 PALLS OP THE PECOS, MOUTH OP THE DELAWARECREEK. DETERMINATION OF LONGITUDE BY LUNAR DISTANCES. Deter
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