1843.] Law of Storms in India. 389 



Now from Noon 23rd to half-past 5 of the 24th is 29| hours, and 

 the distance between the place of the centre on the 23rd and Pondi- 

 cherry is 385 miles, which divided by 29|, gives about 12.4 miles 

 per hour. In the 5^ hours from Noon, the centre would at this 

 rate have made 68.2 miles, which gives the distance of the centre, 

 bearing about West from Pondicherry at Noon on the 24th or in lat. 

 12° 2' N. long. 81° E. 



We have now to trace the storm inland, and for this purpose our 

 materials are the letters and reports from Ryacottah, Bangalore, Bel- 

 lary, Salem, Madura, Paumban, &c, and from Cochin and Telli- 

 chery, on the Western coast. For these we are indebted to Cap*. 

 Campbell, of the Revenue Survey ; to Capt. Newbold, Assistant 

 Commissioner of Kurnool, whose able remarks I have placed in the 

 Summary; to Mr. Crozier, Sub-collector of Madura; Mr. Bruin, 

 Magistrate of Mangalore, and Mr. Bourgoin, Governor of Mahe, 

 and my readers will now please to refer to Chart. II. Ryacottah 

 is in Lat. 12° 31 ^ N. Long. 78° 5' E., and its bearing and distance 

 from our centre of the 24th is about W. b. N. 184 miles, and we 

 find that by 4 p. m. of the 24th it was blowing strong at North. 

 By 9, it was blowing in doors and windows, so that we may take 

 it fairly to have begun as a gale at North at 6 p. m. on the 24th ; 

 and as by 3J a. m. on the 25th, the wind was at East with the Baro- 

 meter at 29.636, its lowest depression, we may assume that the cen- 

 tre was now on or near the meridian of this place, at say 60 or 80 

 miles distance; for we see by Capt. Newbold's letter, that it was 

 felt severely at Salem from the N. E. (time not mentioned,) which 

 shews that its centre, taking it to be then a .circular storm, was 

 yet to the South of that station, and that it was not felt at Madura, 

 104 miles South of Salem, or 154 of Ryacottah. In estimating the 

 position of it, we may take this spot to be also at the same distance 

 from our centre of the 24th (already laid down) as Ryacottah itself, or 

 184 miles, or about in the latitude of Porto Novo; so that we have 

 the storm travelling from Noon 24th to 3± a. m. on the 25th, or in 

 15^ hours, 184 miles, or 11.9 per hour, our former rates being 12.4 

 miles per hour, a less retardative rate than we have hitherto found in 

 former storms. 



* Salem is about 50 miles S. by E. of Hyacottah. 



