1849.] Eighteenth Memoir on the Law of Storms. 897 



Eastern side of the Bay, yet we find that all the ships towards the 

 middle and on the Western side of the Bay are running up with strong 

 Southerly and S. Westerly winds. Now if there was any Cyclone at 

 this time we should have undoubtedly from so many ships some record 

 of equally strong North Easterly, Northerly or North Westerly breezes 

 but there is nothing of the kind. 



As before remarked however, we have the puzzling fact of the numer- 

 ous exhausted land birds which alighted on several of the ships (Sea 

 Park, and Barham, on the 12th, and Edmundshury and Ararat on the 

 13th) to account for, and if we allow that by any remote possibility 

 those of the 13th might have been whirled into the vortex by a stream 

 of wind at N. E. from the Sonderbunds,* yet those of the 12th cer- 

 tainly could not have been so ; and the nearest land to the centre on that 

 day is Cheduba, at 330 miles distance to the E. N. E. with the coast 

 of Pegu to Point Negrais to the Eastward, and the Northern Andamans 

 to the S. Eastward. 



Heuce referring to what has already been said p. 893 of the winds, 

 and of the appearances of the weather at the centre, and the falling 

 of the Barometers of the ships on the 1 1th, we seem justified in saying 

 that in this instance the Cyclone actually descended on the 12th, after 

 passing over some land, from which it carried up the Ringdoves, Snipes, 

 Parrot, Butterflies, &c. and that judging from its track this was more 

 probably the Andamans than the Coast of Pegu : the S. S. Westerly 

 winds of the Joven Corinna being an evidence that for the 10th and 

 1 1 th, the centre of any Cyclone must have been to the South Westward 

 of the Preparis passage. 



Having shewn that the Cyclone must have settled down in the Bay 

 of Bengal after having previously passed over some land to pick up 

 the birds and insects which it brought with it, we are naturally led to 

 enquire where it originally came from, since the bad weather experienc- 

 ed by the Enigma in the Andaman Sea does not give us any evidence 

 for its formation there. 



From several logs which have been forwarded to me it appears that, 



* They could not have been brought from the Cuttack coast, where the weather 

 was moderate though threatening on the whole of the 12th. 



t The average track is N. 41° West, and the average rate for the whole distance 

 about 5' per hour. 



