SURVEY OE THE BRITISH ISLES FOR THE EROCH JANUARY I, 1891. 295 
493. Llanelly. August 21 and 25, 18D0 ; B. (61, 83). Lat. 51° 41' 58" ; Long. 
4° 9' 48". In a field belonging to Tyllwyd Farm, about 1^ miles N. of the town, 
200 yards above the Trebeddod reservoir. An air-shaft on the opposite side of 
the reservoir bore 10° W. of S. 
Declination. 
Date. 
2. 
G.M.T. 
d,- 
h. rn. 
h. m. 
Q i 
O 1 
Aug. 25 
-1 13 
11 36 
19 16-2 
19 13-7 
Inclination. 
Date. 
Needle. 
G.M.T. 
0. 
00. 
Aug. 21 
1 
h. ru. 
13 5 
6°8 6-8 
o / 
2 
13 29 
68 4-2 
68 4-9 
1 
13 50 
68 5-5 
Horizontal Force. 
Date. 
G.M.T. 
H. 
H,, 
Aug. 21 
„ 21 
„ 21 
D 
V 
V 
1). m. 
16 9 
12 4 
15 40 
1'7905 
1-7882 
1-7901 
494. Llanfair. September 13, 1892 ; W. (70, 94). Lat. 52° 39' 49" ; Long. 3° 1 8' 0". 
80 yards S.E. of the first milestone from Llanfair, along the road to Meifod. 
150 yards S. of Hemiarth Farm. 
Declination. 
2. 
G.M.T. 
0 . 
^0- 
h. in. 
-0 46 
! 
, 
n. m, 
11 38 
19 9-5 
19 212 
