1849.] Eighteenth Memoir on the Law of Storms. 891 



On the IQth October, we find the Teak, Enigma and Joven Corinna 

 with tolerably fine weather and the wind between S. S. W. and S. E., 

 some of the vessels carrying studding sails : we cannot thus allow that 

 either on the 9th or 10th we have any sort of data for assuming the 

 presence of a Cyclone, which had it existed must have had its centre 

 to the Westward, and W. S. W. of these ships, and consequently have 

 reached the Sea Park and British Sovereign, the next ships to the 

 Westward, and have given them a Northerly wind. There is only one 

 circumstance which we are a little puzzled to account for, which is the 

 presence of the land birds and insects on the 1 2th on the Sea Park 

 and other vessels. These it is clear must have been brought from some 

 of the land to the Eastward or S. Eastward, that is either from the 

 coast of Pegue above Point Negrais, or from the Andamans. We 

 might suppose indeed that, according to Captain Connew's view, the 

 Cyclone existed as such within the Andaman Sea, and that it was lifted 

 up by the high mountain range of the Andaman Islands, and descended 

 again in the Bay, which we know to happen with Cyclones crossing 

 the peninsula of India, and descending, or being again as it were, renewed 

 in the Arabic Sea. This supposition would account perhaps in part 

 for the depression of the Barometer of the Joven Corinna, but we 

 cannot go farther than to indicate these doubtful points in the absence 

 of any evidence to prove them : I shall refer again to this singular 

 phenomenon. 



On the 11 th October. — It is difficult also to assign any position for 

 a centre, or even to affirm that any Cyclone existed in the Bay, for 

 though we have the Barham, Collingwood, Sea Park, Enigma, Ararat 

 and Teak dispersed over a sort of curved or hooked line of 4° of Lon- 

 gitude, and 2\° of Latitude, there is nothing like Cyclone weather to 

 he found in their logs, nor any thing approaching to a gale. The mere 

 winds of the three nearest to any supposed centre, i. e. Teak, Sea 

 Park and Collingwood, might indeed give us a spot about 90° East ; 

 14° 50 ; North, as a centre, but the British Sovereign must have been 

 crossing near this spot on the 11th, and she carried the somewhat 

 stormy, but not unusual, October S. W. monsoon with which she had 

 run up from 7° North past it, and the Sea Park and Collingwood had 

 both fine weather up to noon. Hence we cannot I think for this day 

 at noon, by any sort of construction, allow that we have any data fairly 



