200 A Twentieth Memoir on the Law of Storms. [No. 2. 



We find then that the Outer Light Vessel 40 miles to the North of 

 her, which vessel has furnished a very careful log which does her Com- 

 mander Mr. Mendham great credit, had strong N. E. and Easterly- 

 winds with squalls and light showers increasing to a heavy gale at 

 E. N. E. at Midnight, when the Bar. had fallen to 29.60. 



At 35 miles farther North, namely at the Saugor Flat Buoy, we 

 find by Mr. Smart's report the weather, though more moderate, still 

 blowing hard with peculiar gusts, and about noon at times almost calm, 

 and at 8 p. m. a remarkable low scud flying. The heavy slaty appear- 

 ance of the sky on this and the preceding days is well noticed by 

 Mr. Smart.* 



At Calcutta 60 miles to the north of the Saugor Flat Buoy, we had 

 nothing but calms with excessively oppressive weather, and Calcutta 

 is at 2/8 miles from the centre of the Cyclone on this day. 



To the N. Eastward we have the H. C. Surveying Brig Krishna, at 

 175 miles distant to the E. N. E. from the centre, with strong breezes 

 from East to S. E. b. E. and S. E. with a heavy southerly swell and 

 dark gloomy appearances to the South and S. S. W. of her. At Ahyab 

 there is nothing remarkable in the weather. 



To the N. N. W. we have it commencing to blow from the East- 

 ward in heavy squalls, at noon, at False Point, 138 miles from the 

 centre. The Rob Boy at 83 miles to the N. West had by noon 

 strong gales from the N. Eastward and La Meuse at the same distance 

 to the W. b. N. had heavy squalls from N. East veering to North, 

 p. m. ; but the Iskunder Shah, 128 miles to the W. b. N. had nothing 

 more than threatening appearances and the wind only E. N. E. at 

 sunset, and a high Barometer, so that it would seem that, to the West- 

 ward, the Cyclone did not extend so far as to the Eastward and round 

 to the North and N. N. W. 



* And the word too is a very good one, for the appearance is at times such we 

 may imagine a slate quarry to present, if the edges of the strata were curved instead 

 of straight and angular : that is, the sky is not one leaden, or slaty-coloured, veil or 

 curtain, but a mass of dim slaty-coloured clouds which scarcely seem to be separate, 

 and are laid thickly over each other. I have described these clouds at Calcutta as 

 a dense mass of strati, cumulo-strati and nimbi, but they were not with us so 

 peculiarly dark coloured (being no doubt thinner) as to assume any very remarkable 

 leaden or slate colour. 



