1844.] Tenth Memoir on the Law of Storms in India. 109 



SUMMARY. 



I proceed now to consider in detail the evidence afforded by these 

 documents for laying down the track of this storm as 1 have traced it. 

 The first log is that of the Bussorah Merchant, which I notice to re- 

 mark that she was evidently carrying a heavy monsoon from the 19th 

 May, on which day she reached Point de Galle, to the 22nd and 23rd on 

 which last day she had reached 14° 34' N. longitude 86° 30' E. steer- 

 ing thus as it were from the South point of Ceylon towards the 

 middle of the Bay on those days, and before the monsoon. The next 

 document is the log of the Rajasthan, which ship being bound to the 

 Southward, was from the 19th at noon, when in latitude 9° 1' N. longi- 

 tude 88° 16' East, standing to the S. S. W. with the wind from S. E. 

 by E. to E. and N. E. At 9 a. m. on the 20th she had the wind at N. E. 

 which at 4 shifted to the Westward, and was a strong gale at West by 

 noon, the Barometer having fallen very considerably, the ship running 

 to the Eastward. 



The fall of the Barometer is somewhat loosely given as being about 

 80, but it must have been a very remarkable one for those lati- 

 tudes, and I am thus inclined to suppose that this vessel had a storm 

 passing to the Northward of her at about noon on the 20th, when she 

 may have been in latitude 8° 35' N. longitude 88° 55' E. She was 

 standing to the Eastward from 5 to 7 knots per hour, and the storm 

 travelling the other way, which will account for the suddenness of the 

 fall, as also that by noon of the 21st she had the storm moderating. 



It was of small extent, for as seen by the chart the Seringapatam was 

 only bringing up a heavy monsoon, about 90 miles to the South of the 

 'supposed centre for this day, which was most probably the date of the 

 beginning of the vortex. 



Passing over the curious log of the Coringa Packet and that of the 

 Tenasserim, both of which I shall notice in another place, we have next 

 for these days, the 19th, and 20th the log of the transport Teazer, which 

 vessel hove to on the 19th May, on account of the threatening weather 

 in latitude 12° N. 81° 28' E. ; her Barometer at 29.72 and having stood 

 on a little again, hove to on the 20th, on which day at noon I take her 

 to have been about in latitude 11° 18' N. longitude 82° 40' E. In the 

 afternoon of this day the storm had commenced with her in a gale from 



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