Ww 
2 RESULTS OF MAKERSTOUN OBSERVATIONS, 1845. 
TABLE XXXIX.—Mean Variations of the Vertical Component of Magnetic Force, with reference to 
the Moon’s Hour-Angle, for each Lunation, for the Six Summer and Seven Winter Lunations, 
and for the whole Thirteen Lunations of 1845. 
LUNATIONS. 
3d. 4th. 
000 O00 
0128 | 0198 
0077 | 0181 
0064 | 0117 
0028 | 0161 
0005 | 0162 
0000 | 0163 
0012| 0176 
0042 | 0099 
0076 | 0060 
0126 | 0000 
0152) 0148 
0175 | 0228 
0255 | 0271 
| 0233 | 0293 
0236 | 0290 
0245 | 0320 
0269 | 0298 
0268 | 0212 
0244 | 0226 
0219 | 0240 
0229 | 0233 
0167 | 0242 
(0176 | 0294 
/0126 | 0254 
0057 | 0225 
0 
1 
2 
3 
4 
5 
6 
7 
8 
9 
6th. 
0-00 
0032 
0036 
0043 
0068 
0097 
0105 
0107 
0114 
0096 
0099 
0095 
0078 
0091 
0100 
0086 
0086 
0081 
0079 
0061 
0050 
0047 
0046 
0018 
0000 
0012 
9th. 
10th. 
000 
0048 
0101 
0162 
0173 
0109 
0129 
0178 
0177 
0177 
0157 
0243 
0197 
0166 
0121 
0120 
0129 
0122 
0131 
0147 
0114 
0093 
0064 
0054 
0017 
0000 
TABLE XL.—Differences between the Hourly Means of the Balance Micrometer Readings for the whole 
Series in each Month, and those for the selected Days; or Table XXXV. minus Table XX XVIII. 
Feb. | March, 
April. | May. 
June. 
July. 
Aug. 
Sept. 
Oct. 
Nov. 
Dec. 
Year. 
|| Mie. Diy. | Mic. Div. | Mic. Div. 
Mie. Div. | Mic. Div. 
Mic. Div. 
—1-5 
—1:5 
— 2-0 
—2:8 
—3-0 
— 3-2 
— 3:3 
—2-6 
| —3-1 
— 2-4 
—1:5 
—4 
—2-1 
— 1-6 
— ae 
+1-7 
+48 
| +7.0 
| +6-6 
+59 
+4:8 
+3-1 
| + 1-0 
—0:9 
Mic. Diy. 
tHE HEHEHE H+ 1 
Mic. Div. 
Mie. Diy. 
=) 
— 18-4 
— 18-3 
—19-4 
Mie. Div. 
—4.2 
—7:3 
—8-8 
(a 
—5-0 
—3-2 
—0-9 
+0-4 
+2-5 
+1-9 
+0:7 
Mie. Diy. 
-17 
— 2-3 
—4-6 
—3-9 
— 2-4 
— 2-0 
—1-9 
—1-6 
=—1-9 
—1:5 
—2.7 
—2-4 
— 2-3 
-1-7 
+0:-2 
+35 
Mic. Div. 
Mic. Div. 
