Within the area of the cyclone the moving body of air frequently attains a rotatory velocity of from seventy to one hundred miles an hour.

TABLE SHOWING THE DIFFERENT MONTHS OF THE
YEAR IN WHICH HURRICANES AND CYCLONES
HAVE BEEN RECORDED IN VARIOUS REGIONS.

LOCALITY. Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

No. Atlantic and W.I.
5
7
11
6
5
10
42
96
80
69
17
7

South’n Indian Ocean
 & Mauritius. 9 1515 8 4 1 1 4 6

North’n Indian Ocean;
 Bay of Bengal—
  N.E. Monsoon. 1 3 12 7 6
  S.W. Monsoon. 616 4 1 2 1

Arabian Sea & Bomb’y—
  N.E. Monsoon. 1 1 1 8 12 9 5
  S.W. Monsoon. 5 9 2 4 5

China Sea and North
 Pacific—(western part). 1 2 212 518 1412 1

Java Sea and Northwest
 Coast of Australia. 3 5 1 1 2 2

From this table it appears that the hurricane seasons in the several localities are as follows:

1. In the North Atlantic, from June to November, the greater number occurring in July, August, September, and October.

2. In the Bay of Bengal they are most prevalent in October, November and December, when the N. E. Monsoon is strongest; they occur also during the S. W. Monsoon, especially in April, May or June.

3. In the Arabian Sea they have been experienced during both Monsoons.

4. In the China Sea they are prevalent on the coast between June and October; but in the central part of that sea during September, October and November.

5. In the Southern Indian Ocean they may be expected between November and April, but they are most prevalent during January, February and March.

6. In the Java Sea, and on the N. W. Coast of Australia they have been recorded during December, January and February.