610 
THE EAEL OE EOSSE ON THE EADIATION 
Table (continued) 
I. 
n. 
III. 
IV. 
V. ’ 
VI. 
VII. 
VIII. 
IX. 
X. 
XI. 
XII. 
XIII. 
1870. 
Sidereal 
time. 
Observed 
deviation 
(<* * * § ** •). 
The Moon’ 
S 
log (g). 
log (s'). 
lo g W- 
log 
(G corr.). 
The adopted mean 
E. 
Apparent 
zenith- 
distance. 
Apparent 
semi- 
diameter. 
Sidereal 
time. 
E. 
Apparent 
semi- 
diameter. 
h 
m 
h in 
Aug. 35. 
22 
3 
107-6 
+54 
20 
64-9 
14 
59-2 
9-9998 
9-9977 
00008 
20302 
22 45 0 
+54 35 
15 0-2 
* gl\ 
22 
30 
7-1 
+54 
26 
62-9 
14 
59-6 
0-0000 
9-9987 
0-0004 
0-8504 
22 
45 
109 1 
+54 
35 
60-2 
15 
0-2 
9-9998 
0-0000 
00000 
2-0376 
gl 
23 
9 
10-5 
+54 
43 
57-8 
15 
0-7 
0-0000 
00013 
9-9996 
1 0221 
23 
29 
112-1 
+54 
50 
56-2 
15 
1-0 
9-9998 
00024 
9-9992 
20510 
9 l 
23 
58 
119 
+55 
0 
540 
15 
1-5 
0-0000 
00039 
9-9986 
1-0780 
Aug. 16. 
22 
51 
88-8 
+65 
34 
60-6 
14 
561 
9-9999 
9-9982 
00010 
1-9475 
23 26 0 
+65 47 
14 57-1 
gl 
23 
6 
9-5 
+65 
40 
58-7 
14 
56-5 
0-0000 
9-9990 
00006 
0-9773 
23 
26 
95-2 
+ 65 
47 
56-4 
14 
57 1 
9-9999 
00000 
0 0000 
1-9785 
9 l 
23 
46 
9-7 
+65 
54 
54-3 
14 
57-4 
00000 
00009 
9 9996 
0-9873 
0 
1 
98-7 
+ 65 
59 
52-9 
14 
57-8 
9-9999 
00016 
9-9992 
1-9950 
9 l 
0 
16 
9-7 
+66 
4 
516 
14 
58-0 
0-0000 
0-0022 
9-9990 
0-9880 
Aug. 19. 
0 
9 
34-8 
+99 
0 
600 
15 
1-4 
0-0000 
9-9954 
00012 
1-5383 
0 50-0 
+99 16 
15 2 7 
t gl 
0 
26 
31 
+99 
7 
57-5 
15 
2-0 
0-0000 
9-9978 
00006 
0-4863 
0 
46 
55 3 
+99 
15 
54-7 
15 
2-6 
00000 
9-9997 
00000 
1-5311 
9 l 
1 
11 
26 
+99 
24 
51-4 
15 
3-2 
0-0000 
0 0024 
9-9904 
0-4139 
1 
33 
55-6 
+99 
32 
48-5 
15 
3-8 
0-0000 
00047 
9-9088 
1-5375 
Oct. 4. 
20 
53 
96-7 
-54 
22 
72-5 
15 
270 
9-9998 
00023 
00001 
1-9876 
21 38 0 
—54 5 
15 271 
yi 
21 
23 
13-8 
-54 
11 
72 1 
15 
271 
00000 
00008 
00000 
1-1407 
21 
43 
98-8 
-54 
3 
72 2 
15 
271 
9-9998 
99998 
00000 
1-9944 
gl 
22 
5 
12 9 
-53 
55 
724 
15 
270 
00000 
9-9988 
00001 
1-1095 
22 
17 
105 4 
-53 
50 
72-7 
15 
26 9 
9 9998 
9-9981 
00002 
20210 
Oct. 9. 
22 
33 
349-3 
+ 6 
31 
61-3 
14 
56-9 
9 9979 
9-9993 
00012 
2-5416 
23 33 0 
+ 6 40 
14 58-1 
II S* 
23 
3 
62-7 
+ 6 
36 
58-2 
14 
57-6 
9-9999 
9-9997 
0-0004 
1-7973 
23 
25 
370-4 
+ 6 
39 
56T 
14 
580 
9-9976 
0-0000 
00000 
2-5663 
gl 
23 
43 
61-4 
+ 6 
42 
54-6 
14 
58-3 
9-9999 
00002 
9-9998 
1-7881 
23 
56 
389-6 
+ 6 
44 
53-7 
14 
58-5 
9-9973 
0-0004 
9-9996 
2-5879 
gi 
0 
8 
620 
+ 6 
46 
52-8 
14 
58-7 
9-9999 
00006 
9-9994 
1-7923 
O 
20 
385-9 
+ 6 
48 
52 -2 
14 
58-8 
9-9974 
00007 
9-9992 
2-5838 
Oct. 10. 
22 
45 
** 337-8 
+ 15 
56 
61-5 
14 
52-6 
9-9980 
9-9988 
00008 
2-5252 
23 53 0 
+ 16 8 
14 53 5 
If gl 
23 
5 
47-4 
+ 16 
3 
590 
14 
53 1 
0-0000 
9-9995 
00004 
1-6757 
23 
25 
31 13 
+ 16 
9 
56-7 
14 
53-6 
9-9983 
0-0001 
9-9998 
2-4914 
gi 
23 
47 
46-2 
+ 16 
16 
54-3 
14 
54-1 
00000 
0-0009 
9-9996 
1-6651 
0 
0 
321-4 
+ 16 
20 
52-8 
14 
54-4 
9-9982 
00013 
9-9992 
2-5057 
* Aug. 15. — N.E. wind all night; hazy sky; the moon was orange-coloured when low. No mention of 
the height of the directive magnet; it is assumed to have been at 3-00 in., as was the case on the following 
night. 
t 22 h 30 m . Galvanometer very unsteady. 
t Aug. 19. — The scale was 38^- inches from the galvanometer; therefore the readings have been multiplied by 
IHHr to reduce them to the usual distance of the scale, and by 0-6579 to reduce them to a height of 3-00 in. of 
the directive magnet. 
§ Oct. 4. — New speculum used for the first time. Magnet at 3-46 in., observations reduced to 3-00 in. 
Apparently clear, hut still a slight fog which makes the moon’s image faint although still sharp. 
|| Oct. 9. Magnet at 3-46 in., observations reduced to 3-00 in. 
Oct. 10. — Magnet at 3-46 in., observations reduced to 3-00 in. 
** The single readings vary more than 20 per cent. 
