RESULTS OF MAKERSTOUN OBSERVATIONS, 
1846. 
TABLE LIII.—Diurnal Range of Magnetic Declination for each Civil Day, as deduced from 
the 12 Daily Observations, with the Means for each Week in 1846. 
as Jan Feb. March. | April May. June. July. Aug. Sept Oct. Nov Dee 
1 8-95 (9-42]| [11-41]| 13-45 9-86 | 10-20 | 13-99 | 12.99 | 13-50 | 22.38 | [11-16]} 13-35 
2 | 3-09 | 12-06 | 10-35 | 12.31 12-03 | 14:45 | 25-19 | [14-24]} 12-23 27-85 | 18-10 8-08 
3 || 3:47 5:65 9-11 | 15-86 | [14-24]| 12-17 | 10-20 9-67 | 10-55 8-86 | 10-43 7-34 
4 (6-74] 8-63 | 15-57 | 12-91 | 29-73 | 11-05 | 13-89 | 12-93 | 24-14 | [16-76] 5:34 | 11-48 
5 5:60 | 4:37 8-09 | [18-23]| 12-41 | 12-65 |[16-19]| 12-84 | 23-58 7-98 | 10-37 4-38 
6 7-01 4-65 7-21 | 32-41 8-78 | 12:79 | 18-86 | 21-03 | [15-85]| 16-42 5:37 [9-44] 
7 12-34 | 9.38 7-62 | 20-08 | 14-54 | [13-77]| 15-44 | 23-79 7-78 | 17-09 | 23-50 3-40 
8 8-01 [6-45]| (7-69]} 15-80 | 13-37 | 17-81 | 13-54 | 13-44 | 17-78 | 31-31 | [11-57] 4-60 
9 5-61 8-57 6-82 | 13-19 | 16-20 | 14-60 | 12-75 | [16-11]} 11-29 | 13-63 8-88 | 25.43 
10 3:85 7-47 7-33 | 11-09 | [16-36]| 13-75 | 11-98 | 12-64 | 10-95 | 14-40 6:58 | 14-20 
11 (8-25]} 4-26 9:06 | 14-43 | 11-86 | 13-26 | 22-48 | 11-98 | 36-61 | [16-93]| 14-70 6-12 
12 13-10 | 12-42 | 15-09 | [17-20]| 28-51 | 13-24 | [14-65]] 13-81 11-85 | 18-43 6-39 8-36 
13 7-43 3-93 | 22-81 | 17-91 | 13-67 | 21-47 | 15-57 9-22 | [16-50]| 15:47 9-44 | [6-88] 
14 11-50 | 10-25 | 21-57 | 28-64 | 11-13 | [14-89]] 13-96 | 17-21 14.97 8-34 | 10-70 3-90 
15 4.99 | [12-91]|[19-86]|} 17-93 | 12-57 | 18-88 | 11-17 | 17-96 | 13-08 6-60 [9-04] 5°18 
16 8-69 | 27-17 | 20-51 | 34-78 | 10-33 9-84 | 14.26 |[14-03]| 11-53 8-38 7:05 3-50 
17 19-29 | 10-54 | 20-40 | 15-89 | [11-65]| 12-66 8-21 15-84 | 13-34 9-48 | 14-04 4-92 
18 [8-47]| 13-18 | 18-80 | 13-29 | 11-61 | 10-62 | 17-32 | 13-40 | 14-72 (9:37]| 6-64 9-76 
19 7-94 8-10 | 10-10 | [17-04]| 12-94 7-31 | [11-04]} 10-57 | 19-79 8-73 5-10 3-71 
20 3-95 9:99 | 14-62 | 12-96 | 11-34 | 17-37 9-23 | 14-13 | [25-36]| 12-67 | 14-39 [6-75] 
21 5-95 | 8-19 | 12-07 | 11-92 | 16-46 | [12-38]} 7-34 | 14:54 | 31-82 | 10-37 7-16 4-66 
22 6-66 | [7-52]|[12-08]| 13-39 | 17-90 | 15-08 9-91 16-18 | 56-45 | 25-06 | [7-11] 5-25 
23 4.60 | 3-61 10-39 | 13-80 | 17-32 | 12-11 | 13-79 |[15-36]| 16-05 9-76 4:36 | 12-21 
24 36-83 | 4-24 | 12-72 | 13-13 |[15-25]| 11-79 | 15-30 | 15-87 | 20-01 17-25 6-87 | 12-27 
25 |} [12 sil) 11-00 | 12-60 | 10-22 ; 11-51 | 11-36 | 18-26 | 16-20 | 10-74 | [13-56]| 4-80 9-12 
26 | 5-20 | 9-29 | 21-45 | [11-78]} 15-79 | 13-31 (15-74]| 15-24 8-82 | 10-48 | 25-96 8-51 
27 | 11-48 | 14-76 | 15-21 12:08 | 12:54 | 14-59 | 13-16 | 17:30 | [11-78] 9-78 | 12-18 [9-13] 
28 10:01 | 9:40 | 14-14 8-86 | 13-36 |[14-10]| 14:16 | 20-02 | 13-64 9:02 | 12-32 | 10-87 
29 10-03 | (16-13]| 12-60 | 16-79 | 13-65 | 19-79 | 16-54 8-14 9-02 | [13-17] 9-52 
30 | 13-46 | 17-73 | 12:63 | 19-55 | 17-68 | 21-09 |[15-22]| 9-32 | 12-07 7-14 4-49 
31 6-71 14-80 [14-42] 15-92 | 11-73 12-01 5-62 
TABLE LIV.—Means of the Diurnal Ranges of Magnetic Declination, with reference to the Moon’s 
Moon’s 
Age. || 
Mean 
Range. 
Moon’s 
Age. 
OOWHKPwwR oe 
_ 
_ 
After 
Moon 
farthest 
North. 
Age and Declination, for 1846. 
After 
Moon 
farthest 
D. 
WHIA MAR WW Of 
— 
wre 
