xl 
CAPTAIN ELLIOT’S MAGNETIC SURVEY OF THE INDIAN ARCHIPELAGO. 
Table A. 
Observatory at Batavia. — Hourly observations made during the 
Astron. Mean Time 1 
of Station. / 
12. 
13. 
14. 
15. 
16. 
17. 
18. 
19. 
20. 
21. 
22. 
23. 
0. 
T+f 
-^ = 1' x-000139 = l'-000139. Declinometer No. II. 
Sums 
Means of 25 days ... 
Diurnal changes ... 
Diurnal oscillation... 
Diurnal declination . 
919-8 
51-10 
+ 0'-5 
3'-7 
50' 19" 
+ 0° 
919-5 
51-08 
+ 0'-5 
3'-7 
50' 19" 
917-6 
50-98 
+ 0'-4 
3'-6 
50' 13" 
1258-2 
50-33 
-0'-3 
2'-9 
49' 31" 
1252-7 
50-11 
— 0'-5 
2'-7 
49' 13" 
1244-0 
49-76 
— 0’-8 
2'-4 
49' 01'’ 
1229-5 
49-18 
-l'-4 
T-8 
48' 25" 
1195-8 
47-83 
-2'-8 
0'-4 
47' 01" 
1186-0 
47-44 
— 3'-2 
O’-O 
46' 37" 
1198-6 
47-94 
— 2'-7 
0'-5 
47' 07" 
1214-7 
48-59 
-2'-0 
l'-2 
47' 49" 
1235-6 
49-42 
— T-2 
2'-0 
48' 37" 
1283-9 
51-36 
+ 0'-8 
4'-0 
50' 37" 
Observatory at Batavia. — Hourly observations made during the 
a 
(-F, 
j = l' X 1-000207 = l'’000207. Declinometer No. I. 
Sums 
Means of 24 days ... 
Diurnal changes ... 
Diurnal oscillation . 
Diurnal declination . 
1303-5 
81-47 
-0'-6 
2'-7 
49' 49" 
+ 0° 
1304-9 
81-56 
-0'-5 
2’-8 
49' 55" 
1304-8 
81-55 
-0'-6 
2'-7 
49' 49" 
1971-4 
82-14 
O'-O 
3'-3 
50' 25" 
1972-8 
82-20 
+ 0'-l 
3'-4 
50' 31" 
1973-8 
82-24 
+ 0'-l 
3’-4 
50' 31" 
1971-0 
82-13 
O'-O 
3'-3 
50' 25" 
1940-3 
80-85 
— 1'-3 
2'-0 
49' 07" 
1907-2 
79-47 
-2'-6 
0'-7 
47' 49" 
1892-2 
78-84 
-3-3 
O'-O 
47' 07" 
1898-2 
‘ 79-09 
-3'-0 
0'-3 
47' 25" 
1928-2 
80-34 
— 1'-8 
T-5 
48' 37" 
1971-4 
82-14 
O'-O 
3'-3 
50' 25" 
c 
^ = 1' X T000139 = l'-000139. Declinometer No. II. 
Sums 
Means of 24 days ... 
Diurnal changes 
Diurnal oscillation... 
Diurnal declination . 
791-4 
49-46 
-O'-l 
3-9 
51' 01" 
+ 0° 
795-2 
49-70 
+ 0'-l 
4'-l 
51' 13" 
790-0 
49-38 
— 0'-2 
3'-8 
50' 55" 
1183-4 
49-31 
-0'-3 
3-7 
50' 49" 
1184-7 
49-36 
-0'-2 
3"8 
50' 55" 
1184-1 
49-34 
-0'-3 
3-7 
50' 49" 
1178-2 
49-09 
-0-5 
3-5 
50' 37" 
1148-4 
47-85 
— r'-8 
C}\0 
49' 19" 
1109-5 
46-23 
-3-4 
0-6 
47' 43" 
1095-7 
45-65 
— 4'-0 
O'-O 
47' 07" 
1105-9 
46-08 
— 3'-5 
0-5 
47' 37" 
1143-9 
47-66 
-T-9 
2'-l 
49' 13" 
1193-5 
49-73 
+ 0'-l 
4'-l 
51' 13" 
Observatory at Batavia. — Hourly observations made during the 
= X T000207- Declinometer No. L 
Sums 
.Means of 27 days ... 
Diurnal changes 
Diurnal oscillation... 
Diurnal declination 
2244-0 
83-11 
+ 0'-l 
l'-8 
48' 49" 
+ 0° 
2237-9 
82-89 
-O'-l 
l'-6 
48' 37" 
2232-2 
82-67 
-0'-3 
l'-4 
48' 25" 
2230-5 
82-61 
-0'-4 
T-3 
48' 19" 
2213-1 
81-97 
-T-0 
0'-7 
47' 43" 
2195-7 
81-32 
-l'-7 
O’-O 
47' 01" 
2197-8 
81-40 
-l'-6 
I'-l 
47' 07" 
2214-4 
82-02 
— I'-O 
0'-7 
47' 43" 
2232-0 
82-67 
-0'-3 
T-4 
48' 25" 
2251-5 
83-39 
+ 0'-4 
2'-l 
49' 07" 
Diurnal declination . 
