154 
J\IR. A. W. RtiCKER A¥D DR. T. E. THORPE OX A MAGXETIC 
227. E. Loch Tarbert. See “ 1890 Memoir,” p. 130. 
228. W. Loch Tarbert (Harris). August 21, 1889; T. (61, 83). Lat. 57° 54'0" ; 
Long. 6° 49' 0". 
Declination. 
2. 
G.M.T. 
C. 
Cg. 
h. m. 
-0 27 
h. m. 
12 36 
23 7-3 
o / 
22 57-0 
Inclination. 
Needle. 
G.M.T. 
0. 
dg. 
1 
2 
h. Ill. 
15 33 
1.5 48 
71 55'7 
71 .55 3 
•i / 
71 541 
Horizontal Force. 
G.M.T. 
H. 
Hg. 
D 
V 
h. m. 
14 45 
12 51 
1-.5360 
1‘.5353 
1-5386 
229. Tarbet. July 20 and 21, 1891; AV. (70, 94). Lat. 56° 12' 12"; Long. 4° 42' 28". 
July 20, near the centre of the field between the hotel and the Loch. July 21, 
about 10 yards from tlie former station. The value of H obtained on July 20 
was adone used in calculating to Disturbing Forces. 
o O 
Declination. 
Date. 
2. 
G.M.T. 
c. 
July 20 
li. m. 
+ 2 57 
li. m. 
15 50 
20 54-6 
O i 
21 30 ; 
! 
1 
„ 21 
-0 52 
12 9 
21 2-2 
