540 A Twenty-third Memoir on the Law of Storms. [No. 6. 



STJMMAKY. 



I proceed now to detail the grounds on which I have delineated 

 the remarkable track of this very interesting Cyclone, which is dis- 

 tinctly an instance of the recurving of a track at the head of the 

 Bay, and to shew its rate of travelling and other peculiarities. 



The Ararat's Log is the first to consider, and we find her running 

 up towards the Sand Heads on the 18th and to Noon of the 19th 

 with a smart monsoon breeze and latterly sharp squalls, being at 

 Noon in Lat. 13° 50' N. ; Long. a. m. 87° 11' East ; Bar. at 29.81 ; 

 Ther. 84° this weather increased to midnight ; the wind however still 

 at S. b. W. 



On the 20th of Oct. — The squalls are stated to come from " about 

 West ;" at 3 a. m., though the wind is marked S. b. W. and South ; 

 at 11 a. m. and at 10.30, the squalls are said to be S. W. veering to 

 S. b. W. At Noon she was in Lat. by Acct. 16° 28' N. ; Long. 

 86° 58' East; her Bar. having fallen a little, and this with the 

 heavy appearance and a very heavy sea from the W. N. W. induc- 

 ed Capt. Eitchie, very properly, to heave to at 1 p. m. When hove 

 to in Lat. 16° 35' N. Long. 86° 58' E. he had the wind S. S. W. 

 and the Barometer still falling, being at 29.67 at 2 p. m. Unfor- 

 tunately the continuous observations of the Barometer, though it 

 was evidently carefully watched, are not registered. At midnight 

 on this day it was blowing a hard gale with torrents of rain. 

 The Easurain four degrees to the Eastward of the Ararat had 

 nothing but a heavy swell, and the Oeorgina and Tavoy at the Pilot 

 station, or 4£ degrees to the North of the Ararat, had increasing 

 breezes from the E. S. E. and the sea beginning to rise. The Luchnow 

 which ship had just left her Pilot, and was some twenty miles to the 

 South of the station, had also the sea beginning to rise with the 

 wind at N. East. 



From these data, we should at first say that, if the Cyclone was 

 at all in action on this day, its centre would be somewhere between 

 the position of the Ararat and Vizagapatam ; but from her subse- 

 quent run and her Barometer on the 21st, together with the winds 

 experienced by the other ships, there was nothing at the earth's 



