Iviii 
CAPTAIN ELLIOT’S MAGNETIC SURVEY OF THE INDIAN ARCHIPELAGO. 
Table B. 
Observatory at Penang. — Hourly observations 
Astron. Mean Time T 
of Station. j 
15. 
16. 
17. 
18. 
19. 
20. 
21. 
22. 
23. 
0. 
1. 
^=*000415987 X cot 60'^ 
9 
= *0002402. ,, 
= *0002402. Bifilar Mag 
netometer. 
Sums 
423*3 
421*3 
419*1 
415*8 
414*4 
401*2 
399-2 
401*9 
401*0 
423*5 
433*7 
Means of 5 days ... 
84*66 
84*26 
83*82 
83*16 
82*88 
80*24 
79-84 
80*38 
80*20 
84*70 
86*74 
Temp, corrections ... 
-1*22 
-0*96 
0*00 
0*00 
-0*96 
— 2*82 
-6*64 
-10*30 
-12*94 
-13*76 
- 12*62 
Corrected means ... 
83*44 
83*30 
83*82 
83*16 
81*92 
77-42 
73*20 
70*08 
67-26 
70*94 
74*12 
Oscillations & diffs. . 
0*38 
0*52 
0*00 
0*66 
1*90 
6*40 
10*62 
13*74 
16*56 
12*88 
9-70 
SX 
*00009 
*00012 
0*000 
*00016 
*00046 
*00154 
*00255 
*00330 
*00398 
*00309 
*00233 
X 
Thermometer of Bifilar. 
Sums 
381*1 
379-8 
375*0 
375*0 
379-8 
389*1 
408*2 
426*5 439*7 
443*8 
438*1 
Means of 5 days ... 
76*22 
75-96 
75*00 
75*00 
75*96 
77-82 
81*64 
85*30 87*94 
88*76 
87*62 
Differences & corrs. . 
— 1*22 
-0*96 
0*00 
0*00 
-0*96 
—2*82 
-6*64 
-10*30 — 12'94 
1 
— 13*76 
-12*62 
Observatory at Pulo Binding. — Hourly observations 
/i=*000415987 xcot60' 
9 
’=*0002402. jy.r., n/r . . 
= *0002402. Bifilar Magnetometer. 
Sums 
168*4 
166*4 
165*5 
162*9 
159-9 
161*6 
166*3 
172*0 
177-8 
182-3 
191-5 
Means of 2 days ... 
84*20 
83*20 
82*75 
81*45 
79-95 
80*80 
83*15 
86*00 
88*90 
91-15 
95-75 
Temp, corrections... 
-1*90 
-1*10 
— 0*85 
0*00 
-0*20 
—3*85 
-9-30 
— 15*05 
-19-15 
-20*60 
-21-20 
Corrected means ... 
82*30 
82*10 
81*90 
81*45 
79-75 
76*95 
73*85 
70*95 
69-75 
70*55 
74*55 
' 
Oscillations & diffs. . 
0*00 
0*20 
0*40 
0*85 
2*55 
5*35 
8*45 
11*35 
12-35 
11*75 
7-75 
SX 
X 
0*00 
*00005 
*00009 
*00020 
*00061 
*00128 
*00203 
*00273 
*00301 
*00282 
*00186 
1 

Thermometer of Bifilar. | 
1 
Sums 
150*8 
149*2 
148*7 
147*0 
147*4 
154*7 
165*6 
177-1 
185*3 
188*2 
189-4 
Means of 2 days ... 
75*40 
74*60 
74*35 
73*50 
73*70 
77-35 
82*80 
88-55 
92*65 
94*10 
94-70 
i 
Differences & corrs. . 
-1*90 
-1*10 
-0*85 
0*00 
-0*20 
-3*85 
-9-30 
-15*05 
-19-15 
-20*60 
-21*20 
