490 
:\JE. A. W. RtCKER AND DR. T. E. THORPE ON A MAGNETIC 
855. Sneem. Angu&t 22, 1891 ; G. (60, 74). Lat. 51° 50' 17"; Long. 9° 53' 57". 
On the left bank of the river, 15 yards from the water, and 80 yards above the 
bridge, 
Declination. 
G.M.T. 
1 
r. i rj). 
li. m. 
h. m. 
o / 1 O / 
-;t 4 
9 h.) 
22 20T 22 2.5 0 
Inclination. 
Needle. 
G.M.T. 
e. 
Oq. 
1 
o 
1). m. 
10 4G 
11 1 
G8 42 6 
68 41-3 
O 1 
68 43-1 
Horizoyital Force. 
G.M.T. 
H. 
Ho. 
h. m. 
D 
11 27 
V 
10 14 
1-7564 
1-7550 
856. Sperrin. July 8, 1892; W. (70, 94). Lat. 54° 47' 26": Long. 6° 59' 50". 
About -g mile E. of Sperrin Lodge, just to the E. of a stream which joins the 
river, and about 10 yards N. of the river. 
Declination. 
V 
G.M.T. 
c. 
^0- 
b. m. 
h. m. 
O 1 
o , 
+ 0 57 
13 20 
21 41-9 
21 53-6 
