SURVEY OF THE BRITISH ISLES FOR THE EPOCH JANUARY I, 1886. 95 
For the Inclination we give :— 
(1.) The number of the needle. 
(2.) The G.M.T. at which the observation was made. 
(3.) The observed Dip, with all corrections applied {6}. 
(4.) The mean observed Dip reduced to epoch [0q). 
For the Horizontal Force we give :— 
(1.) The G.M.T. at which the deflection (D) and vibration (V) were observed. 
(2.) The corrected independent forces found as described on p. 73 (H), but 
corrected for diurnal variation and disturbance. 
(3.) The mean observed Horizontal Force reduced to epoch. 
Longitudes are to be taken as west of Greenwich, unless the contrary is expressly 
stated. 
Descriptions op Scotch Stations. 
1 . Aberdeen. April 6 and 7, 1885 ; A. W. R. and T. E. T. (60, 74). Lat. 57° 9' 50" ; 
Long. 2 ° 6' 5". In a field behind Professor Milligan’s house, immediately oppo¬ 
site to King’s College. Tower of King’s College E.S.E. ; hermitage in Miss 
Leslie’s park W. by S., and the centre of the gate of Miss Leslie’s lodge S.E. 
by S. 
Declination. 
Date. 
2 
G.M.T. 
h. 
April 6 
„ 7 
h. m. 
-2* 42 
h. m. 
14 49 
9 53 
20 24'3 
20 21-6 
O / 
20 16-3 
Inclination. 
Date. 
Needle. 
G.M.T. 
0. 
do- 
April 6 
1 
o 
li. m. 
14 46 
15 28 
o . 
71 12-4 
71 141 
O / 
71 12-3 
Horizontal Force. 
Hate. 
G.M.T. 
H. 
He, 
April 6 
D 
V 
h. m. 
15 56 
14 10 
1-5724 
1-5719 
1-5734 
