clvi CAPTAIN ELLIOT’S MAGNETIC SURVEY OF THE INDIAN ARCHIPELAGO. 
Table I. 
Observations at Sea. 
Abstract of Three Hourly Observations made at Sea. 
Astronomical Mean Time. 
15. 
18. 
21 . 
Noon. 
3. 
6 . 
9. 
Mean. 
Observations made during the Month of April, 1848, corresponding to a Mean 
Latitude of 2 ° 42' N. ; Mean Longitude 108° 03' E. Mean date April 27. 
Dry Thermometer, mean of 5 days 
Wet Thermometer, mean of 5 days 
Standard Thermometer, mean of 5 days 
Temperature of the Air, mean of 5 days 
Temperature of the Sea, mean of 3 days 
83-4 
79-5 
83-5 
82- 7 
79-2 
83- 2 
83-4 
83-9 
83-9 
79-1 
83-6 
83- 8 
84- 3 
86-5 
80-5 
86-2 
85-0 
85-8 
88-3 
82-0 
88-0 
86-8 
86"5 
85-0 
79-3 
85*4 
84-4 
79-8 
84*5 
84- 9 
79-9 
85- 0 
84-8 
83-1 
Observations made during the month of May, 1848, corresponding to a Mean 
Latitude of 7° 07' N. ; Mean Longitude =119° 50' E. Mean date May 15. 
_ ...... ... 
Dry Thermometer, mean of 12 days 
Wet Thermometer, mean of 12 days 
Standard Thermometer, mean of 12 days 
Temperature of the Air, mean of 10 days 
Temperature of the Sea, mean of 10 days 
83;1 
79-1 
83*4 
82- 7 
78-7 
82-6 
83- 2 
85-1 
84- 9 
79-5 
84*4 
85- 3 
86 - 1 
88-1 
81-2 
87-5 
87-8 
87T 
89-2 
82-0 
89-5 
88-1 
87-3 
86- 3 
80-3 
87- 1 
84-6 
79-3 
85*0 
85*6 
80-0 
85- 7 
86 - 1 
86-4 
Observations made during the month of June, 1848, corresponding to a Mean 
Latitude of 3° 20 ' N. ; Mean Longitude 125° 00 ' E. Mean date June 10 . 
Dry Thermometer, mean of 14 days 
Wet Thermometer, mean of 14 days 
Standard Thermometer, mean of 14 days 
Temperature of the Air, mean of 14 days 
Temperature of the Sea, mean of 14 davs 
81- 5 
77-5 
81-8 
81-0 
82- 4 
81-3 
77-7 
81-3 
81-8 
84-1 
82*8 
78-2 
82- 4 
83- 4 
84- 4 
85-3 
79-5 
84- 9 
85- 7 
85-6 
83-6 
79-5 
85-5 
85-3 
85-2 
83- 9 
78*7 
84- 6 
84-2 
84-9 
82*7 
77-9 
83-1 
83-3 
78*4 
83-4 
83- 8 
84- 7 
Observations made during the Month of July, 1848, corresponding to a Mean 
Latitude of 2° 55' S. ; Mean Longitude 126° 00' E. Mean date July 17. 
Dry Thermometer, mean of 22 davs 
Wet Thermometer, mean of 22 days 
Standard Thermometer, mean of 22 days 
Temperature of the Air, mean of 22 days 
Temperature of the Sea, mean of 22 days 
80-5 
77-1 
80-5 
80*8 
80*7 
80- 3 
77-4 
80-2 
80-6 
81- 8 
81- 5 
77*0 
81-0 
81-6 
82- 5 
83*7 
78-4 
83- 9 
84- 2 
83-7 
83-8 
78-3 
84*0 
84*2 
83-5 
82-3 
77-6 
82*8 
82-8 
82-9 
81- 7 
77-5 
82T 
82- 2 
82-1 
82-0 
77*6 
82*1 
82*4 
82-5 
Observations made during the Month of August, 1848, corresponding to a Mean 
Latitude of 6° 32' S. ; Mean Longitude 105° E. Mean date August 17 . 
Dry Thermometer, mean of 9 days 
Wet Thermometer, mean of 9 days 
Standard Thermometer, mean of 9 days 
Temperature of the Air, mean of 9 days 
Temperature of the Sea, mean of 9 days 
79- 5 
77.4 
79*3 
80- 0 
81*2 
79-0 
76-6 
78- 9 
79- 3 
82-5 
82-0 
77.7 
81-5 
81-6 
84-6 
84*3 
78-6 
84-2 
84- 0 
85- 1 
83*3 
78-4 
83-5 
83-3 
84*3 
81-9 
77-8 
81- 9 
82- 7 
84-8 
80*8 
76*8 
8 M 
81*7 
83-6 
1 
81-6 
77-6 
81*5 
81-8 
83-7 
