1092 A Seventh Memoir on the Law of Storms in India. [No. 131. 



" the Cauvery's storm/' veered with her from N. E. by N. to S. W. in 

 about 36 hours, or nearly a point an hour. It was perhaps felt by the 

 Light Vessels to the N. E. and N. of her, and certainly by| the Au- 

 gustus and Panthea coming up from the South, but was of no great 

 extent. It may possibly have originated with' the John William Dare 

 on the 30th, about four degrees to the W. S. W. of False Point, but 

 we have no distinct proof of this. It did not reach the shore about 

 Pooree except as heavy rain. 



3. The Cauvery's storm was moderating at noon on the 1st and to 

 midnight when it had wholly ceased, and it was noon of the 2nd June, 

 before we can say that the Calcutta storm had fairly commenced with 

 the Light Vessels and partly at Calcutta. It was met at sea this day 

 to the S. E. of the Light Vessels by the H. C. P. V. Coleroon, which 

 had parted and stood to sea from the outer Light Vessel's station. 



4. The Light Vessels' and Coleroon's Log fix the place of the centre, 

 (for the Calcutta storm was then on the 2nd a true rotatory one,) very 

 well, as being at noon about 60 miles to the S. E. of the Light Vessel. 



5. The passage of the hurricane over Calcutta, fixes the place of its 

 centre for the 3rd at about 12^ miles to the S. S. E. of Calcutta at 

 noon that day. It determines also pretty exactly its line of track 

 from the 2nd at noon to the 3rd, and its rate of travelling at about 

 128 miles in 24 hours, or 5.3 miles per hour. Its diameter seems to 

 have been about 180 or 190 miles. 



6. About the same time that the centre of the Calcutta storm 

 passed that city, the centre of a separate storm passed also over the 

 station of Midnapore, about 70 miles to the W. by S. of Calcutta. 

 This was of small extent, and not violent enough to do any consider- 

 able mischief. It seems to have been a sort of eddy storm, occasioned 

 by the combined influences of the False Point storm, and the monsoon 

 and the outer verge of the Calcutta storm. 



7. That there were on the 4th two more vortexes or circular storms 

 blowing, the one to the Westward about Bancoorah and Purulia, and 

 the other between Soorajegunge factory and Dacca to the Eastward. 

 The Calcutta storm is still traceable on this day, making in all three 

 distinct rotatory storms, and these storms, with the general Easterly gale 

 caused by the combined eftect of the Northern quadrants of the 

 storms, and of the S. W. monsoon deflected from the ranges of hills 



