Ixii 
CAPTAIN ELLIOT’S MAGNETIC SURVEY OF THE INDIAN ARCHIPELAGO. 
Table B. 
Observatory at Sarawak. — Hourly observations 
Astron. Mean Time "I 
of Station. j 
12. 
13. 
14. 
15. 
16. 
17^ 
18. 
19. 
20. 
21. 
22. 
23. 
0. 
9=-000415987 Xcot60 
k 
1 
o o 
o o 
o o 
o o 
. il il 
o 
Bifilar Magnetometer. 
Sums 
2351-3 
2333-3 
2318-5 
2310-1 
2303-6 
2293-2 
2274-6 
2247-7 
2223-9 
2237-4 
2260-5 
2302-4 
2360-5 
Means of 27 days ... 
87-09 
86-42 
85-87 
85-56 
85-32 
84-93 
84-24 
83-25 
82-37 
82-87 
83-72 
85-27 
87-43 
Temp, corrections ... 
-1-77 
— 1-43 
— 1-11 
-0-78 
-0-61 
-0-53 
-0-20 
0-00 
-0-87 
— 2-84 
— 4-78 
-6-52 
— 8-15 
Corrected means ... 
85-32 
84-99 
84-76 
84-78 
84-71 
84-40 
84-04 
83-25 
81-50 
80-03 
78-94 
78-75 
79-28 
Oscillations & diffs. . 
0-51 
0-84 
1-07 
1-05 
1-12 
1-43 
1-79 
2-58 
4-33 
5-80 
6-89 
7-08 
6-55 
SX 
X 
-00012 
-00020 
-00026 
-00025 
-00027 
-00034 
-00043 
-00062 
•00104 
•00139 
•00165 
•00170 
•00157 
Thermometer of Bifilar. 
Sums 
2082-4 
2073-2 
2064-8 
2055-8 
2051-3 
2049-1 
2040-2 
2034-6 
2058-2 
2111-3 
2163-8 
2210-7 
2254-8 
Means of 27 days ... 
77-13 
76-79 
76-47 
76-14 
75-97 
75-89 
75-56 
75-36 
76-23 
78-20 
80-14 
81-88 
83-51 
Differences & corrs. . 
-1-77 
— 1-43 
— 1-11 
-0-78 
-0-61 
— 0-53 
-0-20 
0-00 
-0-87 
-2-84 
-4-78 
-6-52 
-8-15 
Observatory at Sarawak. — Hourly observations 
^=•000415987 X cot 60°=-0002402. -ninur- 
q =-0002402. Magnetometer. 
Sums 
Means of 19 days ... 
Temp, corrections ... 
Corrected means ... 
Oscillations & diffs. 
X 
1709-9 
89-99 
— 1-64 
88-35 
0-55 
•00013 
1705-6 
89-77 
— 1-38 
88-39 
0-51 
•00012 
1694-5 
89-18 
-1-05 
88-13 
0-77 
•00018 
1686-8 
88-78 
-0-76 
88-02 
0-88 
•00021 
1676-4 
88-23 
— 0-58 
87-65 
1-25 
•00030 
1670-7 
87-93 
-0-38 
87-55 
1-35 
•00032 
1659-8 
87-36 
— 0-10 
87-26 
1-64 
•00039 
1645-8 
86-62 
0-00 
86-62 
2-28 
•00055 
1643-5 
86-50 
-0-95 
85-55 
3-35 
•00080 
1651-3 
86-91 
-3-22 
83-69 
5-21 
•00125 
1681-0 
88-47 
— 5-47 
83-00 
5-90 
•00142 
1711-4 
90-07 
-7-25 
82-82 
6-08 
•00146 
1751-0 
92-16 
-9-05 
83-11 
5-79 
•00139 
Thermometer of Bifilar. 
Sums 
1455-8 
1450-9 
1444-6 1439-0 
1435-7 
1431-8 
1426-6 
1424-6 
1442-6 
1485-8 
1528-5 
1562-4 
1596-6 
Means of 19 days ... 
76-62 
76-36 
76-03 
75-74 
75-56 
75-36 
75-08 
74-98 
75-93 
78-20 
80-45 
82-23 
84-03 
Differences & corrs. . 
-1-64 
— 1-38 
— 1-05 
-0-76 
-0-58 
—0-38 
— 0-10 
0-00 
-0-95 
—3-22 
-5-47 
-7-25 
-9-05 
