1842.] A Seventh Memoir on the Law of Storms in India. 1087 



It will be seen by the diagram that these tangents (or parts of 

 spirals) form part of a circular storm, which we must observe was evi- 

 dently checked to the Eastward (see Comillah report,) by the Cachar 

 hills, and disturbed by, and mixed up to the Westward with the other 

 vortices, and perhaps to the Southward and South Westward with 

 the S. W. monsoon, which at the Sandheads, and probably from thence 

 over to Chittagong, had now fairly set in, as it had at this last station. 



About and at Bhaugulpore, (my report being from a factory within 

 a few miles of the station. I have used this name, as that of a well 

 known spot easily found,) we have the wind as follows: — 



Bhaugulpore. — From midnight E. N. E. heavy gale at its height; 

 at JO a. m. North ; noon N. W. ; and at 6 p. m. West. 



At Monghyr, we have for the 4th and 5th, just such phenomena 

 as might be expected from the confused action which would arise at 

 the junction of two circular storms. On both days, it is described as 

 veering from West to S. E. and N. E., with torrents of rain. At Suraj- 

 gurrah factory, 40 miles to the WbS. of Monghyr, we find the wind to 

 have been blowing almost constantly "from the Northward," which 

 we may take to be any point, or all the points, between N. W . and N. 

 E. ; and at Purneah, which is 40 miles to the N.N.E. of Bhaugulpore, 

 and not far from whence the winds would be deflected by the hills, we 

 find it was a continued gale from N. E., but veering a little to the East- 

 ward in the evening. To the W. and N. W. (Tirhoot and Ghazeepore,) 

 the storm did not reach ; but at Lucknow the Barometer between the 

 28th May and the 6th June, was affected 0.2 of an inch. We should also 

 bear in mind, that this Bhaugulpore storm, if it was that of Calcutta, 

 had to force its way over the Curruckpore hills, the range which forms 

 the Southern barrier of the valley of the Ganges as far as Rajmahl, so 

 that the irregularities may have arisen also from various streams of air 

 pouring through the different defiles, as they could find a passage.* 



The third vortex seems to have been a small one to the West of 

 Jungypore, where on this day we have the wind which had been on 

 the 4th a heavy gale at N. N. E., veering to East and blowing furious- 

 ly all night, on the 5th veered at 6 a. m. to S. E., and by 1 p. m. to 

 S. S. E. ; though at Berhampore, only 5 miles to the S. by E. of it, the 

 wind was S. W. in the afternoon, having changed to that point from 



* See Note at p. 1089. 



