I. II. IV. V. VI. VII. OBS'D WIRES Imperfect Instru- Chronometer. transits. ment. OBSERVED TABULAR A.R. A.R. S. W. Moon, 2d L..... ¿' Ceti.... 713 B. A. C..... 32 Ceti.... 31.2 48.2 5.0 22.0 S. S. S. 1.2 18.2 783 B. A. C..... Eridani 2.0 23.4 7.0 23.4 40.6 57.8 43.2 4.6 26.0 47.3 19.0 41.5 4.0 26.5 23.0 40.0 57.2 14.0 15.0 32.0 50.0 9.8 5.4 15.2 8 5 48.6 27.0 44.0 27.0 48.0 32.4 49.4 30.0 51.2 11.4 33.4 LONGITUDE. From the "Greenwich Observations" for 1849 we obtain the following observed corrections of the AR. of the moon's bright limb: Applying these corrections to the computed AR. of the moon's limb for each date of observation, and comparing with the observed AR., we obtain : Longitude of Camp Riley, computed in the field from the predicted place of the moon in the 7 48 25.98 7 48 13.1 |