150 
MR. A. W. RUCKER AND DR. T. E. THORPE ON A MAGNETIC 
81. Gainsboeough. September 19, 1887 ; A. W. E. (60, 74). Lat. 53° 23' 23" ; 
Long. 0° 44' 51". In a field to the W. of the Upton Eoad, and about 1 mile S. 
(mag.) of the town. 
Declination. 
V 
G.M.T. 
0. 
fb- 
ll. 111. 
+ 3 56 
ll. 111. 
16 16 
18 24-5 
18 36-4 
Inclination. 
Needle. 
G.M.T. 
0. 
b. 
1 
ll. ni. 
17 53 
18 12 
o / 
68 46'4 
68 46-7 
o / 
68 49-3 
Horizontal Force. 
G.M.T. 
H. 
Ho- 
D 
ll. m. 
17 14 
1-7302 
1-7321 
V 
16 31 
1-7356 
82. Giggleswick. September 14, 1886; A. W. E. (60, 74). Lat. 54° 4' 18"; 
Long. 2° 17' 48". In the cricket field of Giggleswick School, 1.50 yards N.W. 
of the Pavilion, and near the W. end of the field. 
Declination. 
G.M.T. 
C>, 
b- 
b. m. 
ll. m. 
o / 
0 / 
+ 1 33 
12 2 
19 31-2 
19 35-3 
+ 3 16 
15 8 
19 29-8 
