232 
MR. A. W. RtiCKER ARD DR. T. E. THORPE ON A MAGNETIC 
Inclination. 
Needle. 
G.M.T. 
e. 
6q. 
1 
83 1 
h. m. 
11 29 
11 39 
67 49-6 
67 49-7 
c / 
67 51-7 
Horizontal Force. 
G.M.T. 
H. 
Ho- 
h. m. 
D 
11 6 
V 
10 46 
1-7998 
1-7966 
370. Dolygaee. (Merthyr Tydvil). August 15, 1890 ; B. (Gl, 83). Lat. 51° 49'34"; 
Long. 3° 21' 18". About 100 yards from where a small brook crosses the cart- 
track which leads from the Railway Station, past a colliery. Under the brow 
marked Pen-y-gaer on the Ordnance maj). 
Declination. 
2 . 
G.M.T. 
0 . 
Cq. 
h. m. 
-1 3 
h. m. 
12 3 
16 46 
19 7-8 
19 8-3 
o / 
19 5-5 
Inclination. 
Needle. 
G.M.T. 
e. 
^0- 
1 
h. m. 
15 15 
68 3-0 
o t 
68 1-6 
2 
15 52 
68 1-5 
Horizontal Force. 
G.M.T. 
H. 
Ho. 
h. m. 
D 
13 52 
V 
12 47 
1-7893 
1-7883 
V 
17 5 
1-7857 
