SURVEY OF THE BRITISH ISLES FOR THE EPOCH JANUARY I, 1886. 155 
Inclination. 
Needle. 
CI.M.T. 
0. 
6o- 
I 
h. m. 
12 57 
6°7 17-8 
67 20-6 
Horizontal Force. 
G.M.T. 
H. 
Ho- 
D 
V 
h. m. 
12 17 
II 46 
1-8321 
1-8319 
1-8282 
90. Holyhead. May 4, 1887 ; T. E. T. (61, 83). Lat. 53° 17' 53" ; Long. 4° 38' 22". 
On the road to Forth Dafarch, 20 yards from the roadside, and about a mile from 
the Fail way Station which bore 50° E. of N. ; Monument on Black Bridge, 55° 
E. of N. ; Spire of New Church, 30° E. of N. ; Windmill, 80° E. of N.; 
Summit of Holyhead Mountain, 30° W. of N, 
Declination. 
2. 
G.M.T. 
c. 
L- 
b, m. 
- 1 51 
+ 1 42 
+ 20 
li. m. 
10 50 
13 42 
20 40-3 
20 41-8 
o > 
20 51-1 
Inclination. 
Needle. 
G.M.T. 
0. 
do- 
1 
2 
h. m. 
12 46 
13 10 
69 22-2 
69 20-1 
o / 
69 23-1 
Horizontal Force. 
G.M.T. 
H. 
Ho- 
1 
1 
li. m. 
11 50 
11 11 
1-6988 
POi+’O 
1-6958 
X 2 
