210 
MR. A. W. RUCKER AND DR. 
rn 
i . 
E. THORPE OH A MAOHETIC 
Inclination. 
Needle. 
G.M.T. 
0. 
do- 
1 
2 
li. m. 
14 38 
15 4 
69 31-8 
69 32-0 
O ! 
69 .34-5 
Horizontal Force. 
G.M.T. 
H. 
Hn. 
D 
V 
h. m. 
15 43 
13 52 
1-6862 
1-6865 
1-6830 
171. Cork. Augusts, 1887 ; A. W. R. (60, 74). Lat. 51° 53' 30"; Long. 8° 29'30". 
In the quarry behind Queen’s College. The second Declination was taken in a 
field about 250 yards to the E. of the first station. The difference between the 
two results is larger than was anticipated. 
Declination. 
2. 
G.M.T. 
(). 
li. m. 
— 3 44 
+ 2 49 ^ 
h. m. 
10 40 
14 36 
15 49 
2°2 .3-8 I 
22 1-7 J 
22 10-3 
O ! 
22 14-3 
22 21-9 
Inclination. 
Needle. 
G.M.T. 
0 . 
do- 
h. m. 
O ! 
o / 
1 
12 52 
68 44-2 
68 46-4 
2 
13 25 
68 43-2 
Horizontal Force. 
G.M.T. 
H. 
Ho. 
D 
V 
h. m. 
12 6 
11 26 
1-7537 
1-7540 
1-7506 
