TABLE C.

SPECIMEN OF INSTRUMENTAL CORRECTIONS, 1864 DECEMBER 9 TO 1865 JANUary 25.

TABLE D.

CORRECTION FOR NEGLECTED TERMS OF NUTATION.

ARGUMENTS: ANNUAL PRECESSION AT TOP, REDUCED MEAN DATE AT SIDE.

Jan. 0 .000 .000.001.001.001 -.001.001.002.002.002

30.002.003.005 −.006.008.010.011-013-.014.016

Mar. 1.003 -.005.008.010.013.016-.018.021.023-.026

31.003.006.009-.012-.014.017.020.023

.000

-.026.029

.000

.000

April 30.002.001.007.010.012-.015-.017.020.022 —.025
May 30.001.003.004.006.007.008-.010.011.013.014
June 29 .000 .000 .000 .000 .000 .000 .000
July 29 .001+.003+.004 +.006 +.007+.008+.010+.011+.013+.014
Aug. 28.002.005.007.010
+.007.010.012.015.017+.020 +.022 +.025
Sept. 27.003.006+.009 +.012.015.017.020.023.026.029
Oct. 27.003.005.008.010.013.016.018.021
Nov. 26.002.003.005.006

-.023.026

.008+.010.011.013.014.016

Dec. 26 .000 .000 .000.001.001.001.001.001.001.001

These corrections are to be added to mean right-ascensions obtained by the use

of the "Nautical Almanac," or subtracted from the apparent right-ascensions of that work.

+ 0.289

0.053

May 7

28.45*

28.23* May 14
28.26* H.

19 after 9.50
24

8 Leonis

B Virginis.
7 Virginis.

a Geminorum 28.91 a Canis Min.. 28.84 B Geminorum 28.87 a Virginis.

0.258

8.

28.18

c = 0.029

8..

n = +0.258

+- 0.072

0 098

-0.144

0.216

0.144

44.23

44.12

43.98*