XXXVlll 
CAPTAIN ELLIOT’S MAGNETIC SURVEY OF THE INDIAN ARCHIPELAGO. 
Table A. 
Observatory at Batavia. — Hourly observations made during the 
Astron. Mean Time! 
of Station. j 
12. 
13. 
14. 
15. 
16. 
17. 
18. 
19. 
20. 
21. 
22. 
23. 
0. 
a^l +^) = 1' X 1-000139 = 1'-000139. 
Declinometer No. II. 
Sums 
939-1 
988-0 
986-8 
982-2 
980-4 
977-8 
963-4 
948-2 
946-0 
953-3 
969-7 
991-2 
967-2 
Means of 19 days ... 
52-17 
52-00 
51-94 
51-69 
51-60 
51-46 
50-70 
49-90 
49-79 
50-17 
51-04 
52-17 
53-73 
Diurnal changes ... 
-O'-l 
-0'-3 
— 0'-4 
-0'-6 
-0’-7 
-0'-8 
-l'-6 
— 2'-4 
— 2'-5 
— 2'-l 
-l'-3 
-O'-l 
+ l'-4 
Diurnal oscillation... 
2'-4 
2'-2 
2'-l 
l'-9 
l'-8 
l'-7 
0'-9 
O'-l 
O’-O 
0'-4 
l'-2 
2'-4 
3'-9 
Diurnal declination . 
49' 07" 
+ 0° 
oo 
48' 49" 
48' 37" 
48' 31" 
48' 25" 
47' 57" 
46' 49" 
46' 43" 
47' 07" 
47' 55" 
49' 07" 
50' 37" 
Observatory at Batavia. — Hourly observations made during the 
a^l+^j = l'x l-000207 = l'-000207. Declinometer No. I. 
Sums 
Means of 25 daj-s ... 
Diurnal changes ... 
Diurnal oscillation... 
Diurnal declination . 
2007-7 
80-31 
+ o'-i 
2'-6 
49' 19" 
+ 0 ° 
2006-2 
80-25 
o'-o 
2'-5 
49' 13" 
2004-5 
80-18 
O'-O 
2'-5 
49' 13" 
2080-5 
80-02 
- 0’-2 
2'-3 
49' 01 " 
2076-6 
79-87 
-0'-3 
2'-2 
48' 55" 
2067-7 
79-53 
-0'-7 
l '-8 
48' 31" 
2049-0 
78-81 
-l'-4 
I'-l 
47' 49" 
2022-0 
77-77 
— 2'-4 
O'-l 
46' 49" 
1553-1 
77-66 
-2-5 
O'-O 
46' 43" 
1327-6 
78-09 
- 2 '-l 
0'-4 
47' 07" 
1344-1 
79-06 
-I'-l 
l'-4 
48' 07" 
1357-9 2i09-£ 
j 
79-881 81-15 
i 
_0'-3| +04 
1 
2 '- 2 | 3'-^ 
48' 55"j50' 07' 
i 
1 
j = l' X 1-000139 = 1'-000139. 
Declinometer No. II. 
Sums 
1311-7 
1308-8 
1304-4 
1351-3 
1345-2 
1336-4 
1316-3 
1288-6 
937-1 
846-0 
864-2 
880-8 
1391-1 
Means of 25 days ... 
52-47 
52-35 
52-18 
51-97 
51-74 
51-40 
50-63 
49-56 
49-32 
49-77 
50-84 
51-81 
53-5; 
Diurnal changes ... 
-O'-l 
— 0'-3 
— 0'-4 
- 0'-6 
-0'-9 
— 1'-2 
— 2'-0 
-3'-0 
— 3'-3 
- 2'-8 
-l '-8 
- 0'-8 
+ 0 '-l 
Diurnal oscillation... 
3'-2 
3'-0 
2'-9 
2'-7 
2'-4 
2 '-l 
l'-3 
0'-3 
O'-O 
0'-5 
l'-5 
2'-5 
4 /. a 
Diurnal declination . 
49' 44" 
+ 0 ° 
49' 37" 
49' 31" 
49' 19" 
49' 01" 
48' 43" 
47' 55" 
46' 55" 
46' 37" 
47' 07" 
48' 07" 
49' 07'' 
50' 49 I 
1 
Observatory at Batavia. — Hourly observations made during th( 
= X 1-000207 = l'-000207. Declinometer No. Ij 
Sums 
1416-3 
1417-6 
1415-1 
1977-6 
1974'2 
1968-3 
1955-2 
1921-1 
1912-0 
1923-0 
1935-8 
00 
1992 - 
Means of 25 days ... 
78-68 
78-76 
78-62 
79-10 
78-97 
78-73 
78-21 
76-84 
76-48 
76-92 
77-43 
78-32 
79-6 
Diurnal changes ... 
— 0'-2 
-O'-l 
-0'-3 
+ 0'-2 
+ 0'-l 
-0'-2 
-o'-7 
— 2'-l 
— 2'-4 
— 2'-0 
-l'-5 
-0'-6 
+ 0'- 
Diurnal oscillation... 
2'-2 
2'-3 
2'-l 
2'-6 
2'-5 
2'-2 
i'-7 
0'-3 
O'-O 
0'-4 
0'-9 
l'-8 
3'- 
Diurnal declination . 
48' 55" 
49 ' 01 " 
48' 49 " 
49 ' 19 " 
49 ' 13" 
48' 55" 
48' 25" 
47 ' 01 " 
46' 43" 
47 ' 07 " 
47 ' 37" 
48' 31" 
49 ' 55 
+ 0° 
