SURVEY OF THE BRITISH ISLES FOR THE EPOCH JANUARY 1, 188G. 213 
Horizontal Force. 
Date. 
G.M.T. 
H. 
Ho. 
May 5 
n '6 
D 
V 
V 
h. m. 
12 5 
1.3 11 
12 6 
1-7108 
1-7105 
1-7125 
1-7120 
1-7079 
1-7095 
175. Enniskillen. 
May 14, 1887 ; T. E. T. (61, 83). Lat. 54° 21' 18"; Long. 7° 39' 50". At 
Silverhill, at the S. end of lower Lough Erne. Portora Old Castle, bearing 
due E. (mag.); Devenish Pound Tower, 38° E. of N. (mag.); Poyal 
Schools, Portora, 35° E. of S. (mag.). 
September 3, 1887 ; A. W. R. (60, 74). Lat. 54° 21' 7"; Long. 7° 39' 8". In a 
field close to the river, and about 150 yards east of the Royal Schools. 
Declination. 
Date. 
V 
G.M.T. 
C. 
Oq. 
Sept. 3 (R.) 
h. m. 
+ 2 39 
+ 2 49 
+ 5 44 
h. m. 
15 44 
18 41 
o / 
22 53-1 
22 51-0 
O / 
23 5-3 
Inclination. 
Date. 
Needle. 
G.M.T. 
0. 
do. 
h. m. 
o 
O 1 
May 14 (T.) 
1 
13 5 
70 
12-8 
2 
13 22 
70 
12-0 
Sept. 3 (R.) 
1 
17 9 
70 
12-3 
70 14-2 ! 
2 
17 29 
70 
11-5 
2 
18 24 
70 
10-8 
Horizontal Force. 
Date. 
G.M.T. 
H. 
H, 
h. m. 
May 14 (T.) 
D 
11 8 
1-6,526 
1-6489 
V 
11 42 
1-6507 
Sept. 3 (R.) 
V 
16 17 
1-6496 
1-6465 
V 
15 58 
1-6.501 
