xviii CAPTAIN ELLIOT’S MAGNETIC SURVEY OF THE INDIAN ARCHIPELAGO. 
Table A 
Observatory at Penang. — Hourly observations made during the 
Astron. Mean Time 1 
of Station. j 
15. 
16. 
17. 
18. 
19. 
20. 
21. 
22. 
23. 
0. 
a 
II 
+ 
: l'-004 X 1-0004= l'-004. Declinometer No. IL 
Sums 
516-2 
517-3 
514-5 
508-7 
506-5 
509-2 
518-8 
524-6 
527-3 
532-( 
Means of 5 days ... 
103-24 
103-46 
102-90 
101-74 
101-30 
101-84 
103-76 
104-92 
105-46 
106-5f 
Diurnal changes ... 
-l'-23 
-I'-Ol 
— 1'-57 
-2'-73 
-3-17 
— 2'-63 
-0'-71 
+ 0'-45 
+ 0'-99 
+ 2'-l] 
Diurnal oscillation... 
l'-94 
2'- 16 
1-60 
0-44 
O’-OO 
0'-54 
2'-46 
3'-62 
4'-l6 
5'-2t 
Diurnal declination . 
47' 35" 
+ 1° 
47' 48" 
47' 14" 
46' 05" 
45' 38" 
46' 11" 
48' 06" 
49' 16" 
49' 48" 
50' 55' 
Observatory at Pulo Dinding. — Hourly observations made during the 
+p J = X 1'0005 = 1''0005. Declinometer No. I. 
Sums 
Means of 3 days ... 
Diurnal changes 
Diurnal oscillation... 
Diurnal declination . 
266-7 
88-90 
-0'-82 
3-70 
48' 04" 
+ 1° 
265-7 
88-57 
-l'-15 
3'-37 
47' 44" 
264-8 
88-27 
-l'-45 
3'-07 
47' 26" 
262-8 
87-60 
-2'-12 
2'-40 
46' 46" 
257-6 
85-87 
— 3'-85 
0'-67 
45' 02" 
255-6 
85-20 
-4'-52 
o'-oo 
44' 22" 
260-2 
86-73 
-2'-99 
l'-53 
45' 54" 
268-2 
89-40 
-0'-32 
4'-20 
48' 34" 
272-6 
90-87 
+ 1'-15 
5'-67 
50' 02" 
276-1 
92-02 
+ 2'-31 
6'-83 
51' 12' 
i 
’-r)= 
I'x l-000445 = l'-000445. Declinometer No. II. 
Sums 
140-4 
139-0 
138-2 
135-8 
130-6 
128-2 
133-3 
141-6 
145-7 
147-5 
Means of 3 days ... 
46-80 
46-33 
46-07 
45-27 
43-53 
42-73 
44-43 
47-20 
48-57 
49-17 
Diurnal changes ... 
— 0-48 
-0'-95 
-l'-21 
-2'-01 
-3'-75 
-4-55 
— 2'-85 
-0'-08 
+ l'-29 
+ l'-89 
Diurnal oscillation... 
4-07 
3-60 
3-34 
2'-54 
0-80 
O’-OO 
i'-70 
4'-47 
5'-84 
6'-44 
Diurnal declination . 
48' 10' 
47' 42" 
47' 26" 
46' 38" 
44' 54" 
44' 06" 
45' 48" 
48' 34" 
49' 56" 
50' 32" 
+ 1° 
“( 
'-004 X 1-0006= l'-0046. Declinometer 
No. III. 
Sums 
301-8 
301-2 
300-6 
297-6 
293-4 
292-6 
298-1 
306-7 
311-1 
314-0 
Means of 3 days ... 
100-60 
100-40 
100-20 
99-20 
97-80 
97-33 
99-37 
102-23 
103-70 
104-67 
Diurnal changes ... 
-l'-31 
-1-51 
— l'-7i 
-2'-71 
— 4'-ll 
-4'-38 
— 2-54 
+ 0'-32 
+ l'-79 
+ 2'-76 
Diurnal oscillation... 
3'-07 
2'-87 
2'-67 
l'-67 
0'-27 
O'-OO 
l'-84 
4'-70 
6'-l7 
7'-!^ 
Diurnal declination 
46' 56" 
46' 44" 
46' 32" 
45' 32'' 
44' 08" 
43' 52" 
45' 42" 
48' 34" 
50' 02" 
51' 00'! 
+ 1° 
1 
