206 
MR. A. W. RUCKER AND DR. T. E. THORPE ON A MAGNETIC 
Inclination. 
Needle. 
G.M.T. 
0. 
00- 
1 
2 
h. m. 
11 55 
11 58 
69 51-7 
69 50-9 
O / 
69 53'3 
Horizontal Force. 
G.M.T. 
H. 
Ho. 
V 
h. m. 
10 42 
1-6727 
1-6700 
165. Castlereagh. May 9, 1887; T. E. T. (61, 83). Lat. 53° 45' 34"; Long. 8° 29' 7". 
About 150 yards W. of the Castlereagh Railway Station. 
Declination. 
V 
G.M.T. 
C. 
^0- 
li. m. 
h. m. 
-0 32 
12 22 
23 1-0 
23 11-1 
i 
Inclination. 
Needle. 
G.M.T. 
0. 
do- 
1 
2 
h, m. 
13 16 
13 36 
69 53-9 
69 54-7 
o / 
69 56-3 
Horizontal Force. 
G.M.T. 
H. 
Ho. 
Y 
h. m. 
12 35 
1-6743 
1-6716 
