LIEUT.-COLONEL SABINE ON TERRESTRIAL MAGNETISM 
109 
Erebus. Terror. 
August. 
October. 
August. 
October. 
grs. 
Face East 
. Face West. 
Face East. 
Face West. 
grs. 
Face East. 
Face West. 
Face East 
Face West. 
2 
1-590 
1-571 
1-620 
1-593 
1 
1-584 
1-592 
1-606 
1-588 
3 
1-578 
1-568 
1-583 
1-570 
H 
1-601 
1-595 
1-620 
1-616 
4 
1-597 
1-633 
1-619 
1-586 
2 
1-633 
1-605 
1-633 
1-613 
5 
1-594 
1-590 
1-603 
1-591 
oi 
“ 2 
1-596 
1-607 
1 587 
1-606 
6 
1-604 
1-591 
1-608 
1-588 
3 
1-622 
1-619 
1-621 
1-616 
1-591 
— — 
H 
1-618 
1-594 
1-616 
1-594 
1-593 
1-607 
1-586 
2 
1-592 
1 
•596 
1-609 
1-602 
1-614 
1-605 
1-594 
1-605 
1-609 
1-607 
At Port Louis in the Falkland Islands, in July and August 1842, the deflections 
were — 
Erebus. 
April. 
August. 
Deflection. 
Ther. 
Deflection. 
Ther. 
Deflection. 
Ther. 
Deflection. 
Ther. 
grs. 
2 
18 31*1 
45 
o 
-18 
50-4 
0 
42 
O / 
-17 57-1 
O 
37 
O 
18 
32-9 
o 
39 
-4-2 
3 
27 42-7 
45 
■g 
28 
30-0 
42 
-s 
27 43-3 
37 
cn 
28 
266 
40 
cO 
H , 
V 
4 
37 58-5 
43 
O) 
38 
51-0 
41 
P3 „ 
<13 
3 7 40-4 
37 
03 
39 
05-3 
40 
CJ 
C3 
P* 
5 
48 55-9 
43 
o> 
cS 
P^ 
51 
27-9 
41 
a 
pH 
49 31-4 
38 
03 
a 
Ph 
51 
19-2 
40 
.6 
66 49-8 
43 
.68 
40-3 
41 
.67 23 4 
38 
.69 
357 
40 
April. 
Terror. 
July. 
August. 
Deflection. 
Ther. 
Deflection. 
Ther. 
Deflection. 
Ther. 
Deflection. 
Ther. 
Deflection. 
Ther. 
Deflection. Ther. 
grs. 0 , 
O 
o / 
O 
O / 
O 
O / 
O 
o / 
O 
O / 
o 
1 16 56-5 
43 
16 14*1 
43 
16 51-2 
41 
16 26 1 
41 
17 00-4 
38 
16 15-4 
38 
li 25 36-6 
43 
24 36-9 
43 
+2 
e/5 
25 34-3 
41 
-s 
24 27 9 
41 
+3 
25 37-3 
38 
-s 
24 30-1 
38 
2 34 47-2 
43 
03 
33 44-9 
43 
c3 
W . 
O) 
34 47'8 
41 
03 
33 49-5 
41 
ctJ 
w 1 
03 
34 24-4 
38 
03 
33 57-8 
38 
21 45 34-1 
43 
a 
a 
Ph 
44 31-3 
43 
ej 
pH 
45 29-7 
41 
03 
c3 
pH 
44 17-1 
41 
c3 
Ph 
45 20-1 
38 
O) 
cd 
PH 
44 32-3 
38 
.3 57 39-1 
43 
.58 1 7*8 
43 
.57 48-7 
41 
.58 19-5 
41 
.57 43-6 
38 
.57 35-7 38 
whence we have the intensity at Port Louis, by the needles of the two ships, as 
follows : — 
Erebus. Terror. 
April. 
August. 
April. 
July. 
August. 
grs. 
Face East. 
Face West. 
Face East. 
Face West. 
grs. 
Face East. 
Face West. 
Face East. 
Face West. 
Face East. 
Face West 
2 
1-291 
1-288 
1-330 
1-306 
1 
1-316 
1-316 
1-323 
1-301 
1-311 
1-315 
3 
1-311 
1-296 
1-310 
1-299 
H 
1-331 
1-338 
1-333 
1-345 
1-331 
1-344 
4 
1-331 
1-315 
1-339 
1-309 
2 
1-356 
1-342 
1-355 
1-339 
1-369 
1-335 
5 
1-361 
1-326 
1-347 
1-329 
ol 
w 2 
1-336 
1-334 
1-338 
1-339 
1-341 
1-333 
6 
1-345 
1-332 
1-339 
1-324 
3 
1-353 
1-333 
1-350 
1-333 
1-352 
1-344 
1-328 
1-311 
1-333 
1-313 
1-338 
1-332 
1-340 
1-331 
1-341 
1-334 
1-320 
1-323 
1-335 
1-336 
1-337 
1-322 1-336 
