. Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean . AMP 52 A—SEPTEMBER 27, —Lieut. H. L. Abbot, U. S. Top. Engineers. Index error, -\~ V 00meter, 49°.0. CAMP 48 A, (same as Barometer, in. Thermo- 40 A)—SEPTEMBER 22, Abbot, U. S. Top. Engineers. Observer—Lieut, H. L h. m. 33 35 36 37 39 41 d. m. s. h. m. 48 50 52 53 d. m. 28 1054 45 10 54 49 20 55 11 46 118 00 40 118 38 10 119 00 40 119 29 20 12
. Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean . AMP 52 A—SEPTEMBER 27, —Lieut. H. L. Abbot, U. S. Top. Engineers. Index error, -\~ V 00meter, 49°.0. CAMP 48 A, (same as Barometer, in. Thermo- 40 A)—SEPTEMBER 22, Abbot, U. S. Top. Engineers. Observer—Lieut, H. L h. m. 33 35 36 37 39 41 d. m. s. h. m. 48 50 52 53 d. m. 28 1054 45 10 54 49 20 55 11 46 118 00 40 118 38 10 119 00 40 119 29 20 120 02 30120 38 20 ASTRONOMICAL A—Continued. 21 CAMP 52 A—SEPTEMBER 27, —Lieut. H. L. Abbot, 17. S. Top. Engineers. Object observed. ; Time of observn Observed double by chronometer. altitudes. Pola ft. s888 s. 3D.:j11.(1 ) el. m s. 89 43 10 8D 44 20 89 45 30 89 46 20 89 46 40 89 48 10 89 49 10 89 50 30 89 51 30 89 52 00 Index error, -f- 1 20. Barometer, in. Thermome-ter, 49°. CAMP 53 A—SEPTEMBER 28, —Lieut. H L. Abbot, K S. Top. Pegasi a Cor. Borealis Polaris 110 02 50 11(1 36 10 110 57 20 111 26 30 111 59 10 112 21 50 81 21 10 80 40 30 80 10 30 79 48 20 79 26 00 78 59 40 89 38 50 89 39 30 89 40 20 89 41 10 89 41 50 89 43 10 89 44 20 89 45 00 89 46 10 89 47 20 Index error,-)-120. Barometer, in. Thermome-ter, 41°.5. CAMP 54 A, (same as 41 A)—SEPTEMBER 29, —Lieut H. L. Abbot, U. S. Top. Engineers. Pegasi. Polaris. A. 7)1 s. d. m. s. 9 02 130 22 :i(l 9 03 130 55 411 9 05 131 16 30 9 09 132 30 20 9 11 133 06 2D 9 12 133 30 111 8 41 DO 27 30 ■- 44 90 29 30 8 45 90 30 (ill 8 47 90 31 30 8 48 90 32 111 6 49 99 33 58 CAMP 54 A, (same as 41 A)—SEPT. 29, 1853——Lieut. II. L. Abbot, U. S. Top. Engineers- Object observed. Time of obervn Observed doubleby chro
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