Raleigh's Tyfoon of 1835. “$e 
3. That it was a progressive whirlwind storm ; = to the 
left, around its axis of rotation 
4, That its centre of rotation passed to the obtiliniersh of the 
Lady Hayes ; and to the soutinward of the Raleigh and of Canton, 
and the anchorages near Macao ; and aceon on the line A, é £; 
as marked on our chart. 
_ §. That the rate of its progréss was abort seventeen india 
_ailes per hour. 
6. That the extent or diameter: of the violent part of the gale, 
as deduced from its duration and rate of progress, was about four 
hundred nautical miles, or equal to six or seven degrees of latitude. 
7. That the latter induction agrees with the geographical evi- 
dence which has been obtained of the visitation of the storm. 
The progress of the tyfoon being taken at 17 miles per hour, 
_ it follows that the excess of velocity of the wind at E. with the 
Raleigh, over that of the wind at W. with the Lady Hayes, sup- 
the rotation to have been in a circle, would be more than 
thirty miles an hour ;-allowing nothing, however, for difference 
of retardation of the setae wind, and not taking into the account 
#h@-additional-retardation which the west wind of the Lady Hayes 
must have been subject to, in its recurving course over the land. 
If a circle be drawn on the chart around each of the points. B and 
C, with.a radius equal to 3 or 34 degrees of latitude, these circles 
will comprise, somewhat nearly, the field of action of ‘the storm, 
at the two periods of 9a. m. of the 5th, and 2 a. m. on the 6th of 
August. 
The progressive velocity-and course of this tyfoon, is neatly 
the same as that of the Trinidad hurricane of June, 1831; and 
the rate of progression also corresponds nearly to that of the An- 
tigua hurricane of August 12th, 1835. See tracks Nos. I, and V, 
Spires chet 3 Shoconrees of mepioenl, in the April No. of the 
Nautical Magazine, 1836.* 
This examination of thé case befige us, appears to show that 
the direction of rotation, and the course of progression of ‘this ty- 
foon, while crossing the China sea, agree with those of the hurri- 
~ canes of the West Indies; and that cts course was not controlled, 
or eg Remienee, by the existing pees monsoon. 
*For this Soi ig see alls Silliman’ s Journal, Vol. XXXI, or Reid on the Law 
eos Chart I q 
