0.-1

8

TABLE 2. Level Error of the Transit Instrument at Mount Cook Observatory, Wellington, New Zealand.

'OTE.—' ie sign + indicates that the West Pi ivot is Llg] Date. Sid. Time of Level Determination. Clamp. Level Error corrected for Inequality of Pivots. Date. Sid. Time of Level Determination. Level Error cor- „ rected for Clamp. inequality of Pivots. 1883. Dec. 3 ... „ 3 ... „ 3 ... r; 1883. Dec. 9 ... „ 9 ... H. M. 2 15 2 30 a H. M. 0 05 0 25 0 50 B. B. E. + 3-66 + 1-17 + 1-36 B. B. + 4-08 + 3-82 m 19-53 Mean = HO 6-19 Mean = 2 22 E. + 3-91 0 27 E. + 2-06 Dec. 3 ... < 3 ... ■ 3 ... „ 3 ... 1 1 1 1 10 30 45 55 W. W. W. w. -f 2-64 + 2-37 + 2-26 + 1-04 Dec. 14 ... „ 14 ... . 14 ... „ 14 ... 0 55 1 10 1 30 1 45 B. B. B. B. + 4-37 + 3-37 + 3-02 + 3-57 L 40 8-31 Mean m 5 20 14-33 1 35 W. + 2-08 Mean m E. + 3-58 1 20 Dec. 5 ... . 5 •■• 1 1 10 30 W. W. + 3-57 + 3-47 Dec. 14 ... . 14 ... . 14 ... . I* ... , 14 ... 1 2 2 2 2 50 05 15 30 45 W. W. w. w. w. + 3-31 + 2-99 + 3-09 + 2-19 + 1-91 40 1-04 Mean = 1 20 W. + 3-52 11 25 13-49 Dec. 5 ... . 5 ». „ 5 ... . 5 ... „ 5 ... 5 ... 1 1 2 2 2 5 45 55 05 15 25 15 E. E. E. E. E. E. + 2-83 + 2-51 + 2-80 + 2-99 + 3-09 + 2-93 Mean = + 2-70 2 17 W. Dec. 14 ... „ 14 ... 3 4 10 05 E. E. + 2-35 + 2-51 7 15 •86 Mean = 15 40 17-15 Mean = 3 38 B. + 2-43 2 37 E. + 2-86 Dec. 5 ... . 5 ... . 5 ... 5 6 (I 50 05 45 W. W. W. + 2-32 + 2-26 + 1-52 Dec. 15 ... „ 15 ... „ 15 - ... „ 15 ... 0 1 1 1 50 05 30 40 W. W. W. W. + 3-22 + 2-87 + 2-32 + 1-55 40 6-10 Mean = c» 13 W. + 2-03 5 05 996 Mean = 1 16 W. + 2-49 Dec. 9 ... . 9 - ■ 9 ... 0 0 1 25 40 00 E. E. B. + 3-95 + 3-95 + 3-73 Dec. 15 ... „ 15 ... , 15 ... 1 1 2 45 50 05 E. E. E. + 2-00 + 1-74 + 2-41 2 05 See below. 5 40 6-15 Mean = 0 42 E. + 3-91 Mean = Dec. 9 ... . 9 ... „ 9 ... „ 9 ... 1 1 —1 1 15 24 4050 W. W. w. w. + 3-47 + 3-12 + 4-15 + 3-57 1 53 B. + 2-05 Dec. 15 ... , 15 ... 2 .28 2 40 W. W. + 2-64 + 3-44 1 -29 14-31 r>8 6-08 Mean = Mean = 1 32 W. + 3-58 2 34 W. + 3-04 •