10

C.—l

Table 2.—Level Error Of The Transit Instrument, Mount Cook Observatory— continued. Table of Means.

TABLE 3. Azimuth Error of the Transit Instrument at Mount Cook Observatory, Wellington, New Zealand.

Notes.—These mean values were used in reducing tlio observations. Date. Sid. Timo of Determine Clamp' tion. Level Error corrected for Inequality oil Pivots. Date. Sid. Timo of Level Determination. Clamp. Level Error oorrected for Inequality of Pivots. 1883. Dec. 3 „ 3 ,, 5 . 5 . 5 . 9 „ 9 . 9 ■ 14 . 14 . 14 . 15 ■ 15 „ 15 . 15 H. M. 0 27 1 35 1 20 2 37 6 13 0 42 1 32 2 22 1 20 2 17 3 38 1 16 1 53 2 34 3 05 u 1883. Dec. 15 ... „ 15 ... „ 15 ... „ 16 ... .„ 10 .... „ 17 ... . 17 ... „ 18 ... „ 18 ... „ 18 ... 1884. Jan. 11 ... „ 11 ... „ 11 ... H. 5 6 7 1 3 1 2 1 2 4 M. 27 28 15 .50 54 32 14 45 51 52 it E. W. W. E. W. E. w. E. E. W. E. W. E. W. E. + 2-06 + -2-08 + 3-52 + 2-86 + 2-03 + 3'91 + 3'58 + 3-91 + 3-58 + 270 + 2-43 + 2-49 + 2-05 + 3'04 + 4-18 E. E. W. E. W. E. W. E. W. E. + 3-15 + 1-82 + 1'84 + 1-96 + 2-20 + 2-56 + 1-22 + 1-75 + 2'03 + 1-86 3 3 4 04 38 15 W. E. W. + 1-66 + 1-62 + 2'58

'OTE.—' 10 sign + signi. Qes t iat t ic optic axis points E. 0: N. Date. ■ Sid. Time of Obs. Stars observed (and Number of Wires). Clarnp. Apparent Error of Azimuth. Bemarks. 1883. Dec. D 11. II. 0 15 /8 Cham. S.P. (7) and /J Hydri (8) E.W. W.E. W. w. w. -I- -68 . 3 " 8 1 10 1 29 1 52 /3 Andromeda (7) and 0 Ceti ... t] Piscium and a Eridani (Achernar) ji Ariotis and ji Centauri S.P. (3) Least Squares + 5-81 - -75 - 2-21 + -66 Adopted. 11 4 0 15 /3 Cham. S.P. (8) and /3 Hydri (8) W.E. E.W. + 1-34 Adopted. 11 11 11 11 11 it 11 5 5 5 5 5 5 5 0 38 1 29 1 36 2 06 5 14 G 15 6 23 /? Hydri (1) and e Pisciuna (7) ... ?; Piscium and a Eridani (Achernar) (8) «. a Eridani (Achernar) (8) and o Piscium ... a Arietis (8) and 67 Ceti (4) ... (3 Orionis (Eigel) and y3 Tauri ... 7j Gominorum and a Argus (Canopus) (8)... fi Geminorum (5) and <r Octantis S.P. (7) Least Squares W. w. w. E. E. W. W. - -33 + 2-47 + -68 + 1-85 + 3-43 - 2-09 - -57 - -36 Adopted. 9 0 29 /3 Hydri (8) and (3 Ceti W.E. E. W. W. W. - -32 It 9 9 9 1 29 1 52 1 58 * 17 Piscium and a Eridani (Achernar) p Arietis and /3 Cenfcauri S.P. ... p Centauri S.P. and a Arietis ... Least Squares + -97 + 4-26 + 2-62 - -03 Adopted. II It It It 14 14 14 14 14 1 10 I 29 i 34 3 27 3 53 /? AndromodtE (7) and 6 Ceti ... i) Pkcium and a Eridani (Achernar) (8) ... a Eridani (Aehernar) (8) and v Piscium (8) S Arictis and y Hydri y. "Hydri and A Tauri ... Least Squares E. E. E. E. E. + 3'26 -i- -22 + -48 + 4-02 + 3-71 + 2-87 Adopted.