322 A Twenty-first Memoir on the Law of Storms. [No. 4. 



SUMMARY. 



We find that on the 30th April the Diana, almost on the Equator, 

 had a fresh S. W. to Westerly monsoon in Long. 87° 00' East ; and 

 that again from the meridian of the Coast of Coromandel to 84° 00' 

 East and between 6^° to 13° North, the weather was fine with fresh 

 to light and variable winds from the Southward. The Barque Hannah 

 only, off the Coast of Ceylon, finds it becoming unsettled towards 

 Midnight. 



On the 1st May. — The Diana in about 2° North is bringing up a 

 strong Westerly monsoon and from the meridian of Trincomalee (81°) 

 to 84° East and between Trincomalee and 1 1° North Latitude ; the 

 Hannah, H. M. S. Fox, the Mary Ann and Joseph Manook have vari- 

 able Westerly breezes and squally, but except threatening appearances 

 nothing to indicate a Cyclone. The Fox's Barometer was rising (if 

 this be not an error?) and that of the Precursor Steamer (to the 

 W. S. W. of Ceylon) doing the same. The Joseph Manook's Baro- 

 meter is fluctuating from 29.82 to 29.72 and then to 29.78. The 

 Northernmost vessels of those above-mentioned are the Mary Ann and 

 Joseph Manook in 10^° North. We have then, a degree farther to 

 the North and 1^ degrees to the Eastward, the Atalanta in Lat. 

 1 li° ; Long. 83° 40' and the Ostrich in 14° 19' to 82° 45' with squally 

 gloomy weather from the E. N. Eastward, the Atalanta 's Barometer 

 falling from 29.76 to 29.70 in the 24 hours* The Easternmost ships 

 have N. N. Westerly airs at times, but there is nothing again in all 

 the records to indicate that a Cyclone had yet commenced in any part 

 of the Bay. We have unfortunately no positions given in the Log of 

 the Sarah except those of the 10th, when she was in the neighbour- 

 hood of the Nicobars and in 6° 36' N., and 93° 12' East; and of the 

 5th, when she was in !0° 40' N., Long. 86° 10' East; having had in 

 these four days a heavy gale rising to a hurricane from S. S. W. and 

 of this we cannot say if it was part of a Cyclone or the monsoon only. 

 Its peculiarity of veering from South to S. W. I shall subse- 

 quently remark upon, she must on this day have been about 10° East 

 of Trincomalee, and the Diana also at about 10° to the S. East had 

 also an increasing monsoon gale from the S. Westward. 



