SURVEY OF THE BRITISH ISLES FOR THE EPOCH JANUARY 1, 1891. 
63 
Horizontal Force. 
G.M.T. 
H. 
Ho. 
h. m. 
D 
12 38 
V 
12 11 
P6543 
1-6.510 
55. Oarstairs. See “ 1890 Memoir,” p. 104. 
56. Castle Bay (Barra). August 12, 1889; T. (61, 83). Lat. 56° 57' 12”; 
’ Long. 7° 29' 36”. Near the shore on the W. side of the Bay. 
Decimation. 
2. 
G.M.T. 
r. 
^0- 
h. m. 
-2 7 
h. m. 
10 55 
22 7-0 
21 55-7 
Inclination. 
Needle. 
G.M.T. 
0. 
f'o- 
1 
2 
h. m. 
12 34 
12 49 
O ! 
71 53-1 
71 .51-9 
0 / 
71 51-0 
Horizontal Force. 
G.M.T. 
H. 
Ho. 
1) 
V 
h. m. 
12 15 
11 9 
1-5275 
1-5268 
1-5302 
