OBSERVATIONS TAKEN IN INDIA. 
369 
the S.E. wind, also from the Indian Ocean, is not a rain-bearing wind in the sense of 
a monsoon. By a comparison of the Wind-table with the Rain-table of Madras, it will 
be seen that in the months in which the S.E. winds prevail, February, March, April, 
September, and early part of October, the first three months are almost entirely rain- 
less, and the little that falls in September is owing to occasional S.W. winds. This 
may be owing to the air over the peninsula in those months, from the position of the 
sun in the ecliptic being too hot to condense the S.E. vapour. On the contrary, the 
N.E. wind from the bay of Bengal comes loaded with vapour in November, De- 
cember and January, and the sun being far south, the peninsula is rapidly cooling, 
and the vapour from the bay of Bengal being of a higher temperature than the air 
upon which it is thrown, is condensed. The valuable table from the Madras Obser- 
vatory shows by inspection, the gradual changes of the wind from one quarter to 
another, and the total annual numbers under each quarter show considerable uni- 
formity in successive years. 
Winds at Bombay. 
The following Table of the winds at Bombay, for the year 1843, is from the hourly 
observations taken by Dr. Buist, LL.D. Although the numbers of hours at which 
the winds blew are placed under the points N.W., S.W., S.E., N.E., the numbers 
embrace the winds within each quarter of the compass ; for instance, N.W. embraces 
all the winds blowing between N. and W., and so on for the other quarters. 
N.W. 
S.W. 
S.E. 
N.E. I 
January 
382 
56 
11 
157 
February 
397 
15 
32 
132 
March 
451 
30 
28 
138 
April 
442 
94 
17 
47 
May 
380 
273 
12 
1 
June 
85 
438 
73 
7 
July 
133 
491 
0 
0 
August 
184 
460 
2 
3 
September 
98 
390 
43 
53 
October 
280 
41 
50 
253 
November 
224 
1 
51 
348 
December 
130- 
0 
64 
382 
Year 
3184 
2289 
383 
1521 
The Table shows that the prevailing wind at Bombay, in 1843, was from the points 
between N. and W., having blown at 3184 hours. The next prevailing wind is from 
the points between S. and W., having blown for 2289 hours, being the rain-bearing 
wind of the so-called S.W. monsoon, from May to September inclusive; but in truth 
the wind most generally blows from the W.S.W., with a leaning to a point more 
westward, and a S.W. and by S. wind during the monsoon is of rare occurrence. The 
wind from the points between N. and E. is the next most prevalent. It begins to 
prevail in October, and continues prevalent as long as the N.E. monsoon blows at 
3 B 
MDCCCL, 
