338 
MR. A. W. RtrCKER AND DR. T. E. THORPE ON A MAGNETIC 
Horizontal Force. 
G.M.T. 
H. 
Ho- 
h. m. 
D 
12 29 
V 
11 58 
1 6903 
V 
14 32 
1-6874 
1-6868 
V 
14 46 
1-6865 
579a and h. Reading. See “ 1890 Memoir,” p, 184. 
580a and h. Redcar. See “ 1890 Memoir,” p. 185. 
581. RvETFORD. October 1, 1890; G. (GO, 74). Lat. 53^^ 19' 58”; Long. 0° 57' 0”. 
In a field E. of a bye-road leading to Round. A little S. of the rifle ranges. 
East Retford Church tower bore 30° E. of S., about 1 mile distant. The shaft of 
Bollom Paper-mill bore 10° N. of E., about mile distant. 
Declination. 
V 
G.M.T. 
r. 
''o- 
li. m. 
+ 2 43 
1). m. 
14 59 
18 13-2 
18 11-5 
Inclinat 
ion. 
Needle. 
G.M.T. 
0. 
00. 
1 
2 
h. m 
13 6 
68 42-1 
68 42 0 
o t 
68 41-6 
Horizontal Force. 
G.M.T. 
H. 
Ho- 
V 
h. lu. 
15 12 
1 ' i “iOO 
1-7460 j 
