ON THE LIGHT OF THE MOON AND OF THE PLANET JUPITER. 243 
No. of Moon’s Log. Obs. Log. Cor. oy 
Date. Stars. Elongation. Moonlight. Alt. Extinction. Log. Mo. Wi. Log. Mi. Log. Ms. Log. Ms. Log. Ma. 
Mar.28 19 1295 9499 380 0.097 9.590 2 9.896 9.721 9.688 9.830 
80 20. 1010 9761 . 47 0X4 9775 .8 — 9985 9949 9.954 -9.966 
81. 4 167.0 0017 50 417 0084 9? ' 0012 0.000 - 0.085 0.006 
April 1 5 179.3 0.213 55 010 0.223 2 0.023 0.023 0.069 0.023 
3 14 201.0 9.956 70 .003 9.959 5 0.024 9.995 0.971 0.011 
4 18 221.4 9.786 76 .002 9.788 2 9.981 9.865 9.944 9.937 
7 6 261.9 9.304 50 .017 9.321 3 9.786 9.299 9.359 9.625 
26 13 120.9 9.582 44 030 9.612 5 9.868 9.626 9.603 9.786 
27 20 134.2 9.720 50 .017 9.797 5 9.932 9.790 9.796 9.884 
June 29 5 193.0 0.059 45 028 0.087 4 0.039 0.028 0.012 0.048 
July 22 9 105.2 9.506 70 003 9.509 4 9.813 9.413 9.440 9.690 
24 8 133.2 9.832 55 .012 9.844 4 9.960 9.811 9.881 9.917 
26 18 160.7 9.026 83 001 0.027 5 0.030 0.005 0.089 0.032 
Aug. 22 3 130.0 9.794 55 012 9.806 3 9.949 9.779 9.848 9.894 
23 5 143.0 9.885 74 .002 9.887 4 9.991 9.899 9.972 9.962 
Nov. 19 12 142.1 9.786 45 028 9.814 4 9.952 9.855 9.855 9.902 
25 2 211.4 9.625 29 113 9.738 2 9.933 9.867 9.800 9.894 
Dec. 17 4 123.0 9.504 37 058 9.562 3 9.884 9.659 9.651 9.787 
26 3 223.6 9.740 30 0.097 9.837 2 9.905 , 9.776 9.714 9.844 
From the above we obtain the following, arranged according to values of v. 
Log. Mı — log. My. Log. M2 — log. Mp. Log. M3 — log. My. Log. M4— log. My. Wt. 
v — 981 + 0.465 — 0.022 + 0.038 + 0.304 3 
105.2 +0304 ` — 0.096 — 0.069 + 0.181 4 
120.9 + 0.256 + 0.014 — 0.009 + 0.174 5 
128.0 + 0.822 -]- 0.097 + 0.089 + 0.225 8 
129.5 +0300. + 0.125 + 0.092 J-03984- 9 
1600. 40,148 — 0.027 + 0.042 + 0.088 3 
133.2 + 0.116 — 0.033 + 0.087 + 0.073 4 
134.2 +0.195 + 0.058 + 0.059 OHNE E 
136.4 + 0.068 — 0.061 — 0.123 +. 0.007 2 
138.6 + 0.193 -]- 0.077 + 0.156 + 0.149 2 
142.1 + 0.138 poi +0,041 + 0.098 4 
143.0 + 0.104 + 0.012 + 0.085 + 0.075 4 
