382 Nineteenth Memoir on the Law of Storms. [No. 5. 



H. M. S. now ran down with the wind N. N. W. and N. b. W. 

 till 4 p. m. when she reached the calm centre, hut the Cyclone follow- 

 ing her and probably before this time combining with the Sultany's 

 and Braemar's gave her a renewed hurricane at W. S. "W. and S. 

 West, when unable to lie to any longer she bore up, with the wind now 

 blowing harder than the figure 12 expresses, though it had only been 

 rated at 10 before the calm. This average shift of N. N. W. to S. W. 

 would give a track of E. S. E. for the body of the Cyclone at this 

 time, though as compared with the position of the Sultany, not far 

 from which one of the main Cyclones had certainly travelled down to 

 reach the Jumna's here, the track should have been one from the 

 N. W. b. N. to the S. E. b. S. so that if there was a junction of the 

 three Cyclones as we have supposed, the track of the larger one was 

 curved towards the smaller. The Jumna scudded before the S. W. 

 hurricane till lOh. 45' p. m. when broaching to, she upset and was 

 only saved from foundering by cutting away her mainmast. It is 

 remarkable also that her Barometer was now lower, being at 29.16, 

 than in the calm, when it was at 29.21 . Was this an effect of the meet- 

 ing of the Braemar's Cyclone ? 



The Cyclone may indeed have curved farther to the Eastward, as we 

 shall now see on consideration of the Braemar's Log, which, I should 

 premise, is one very well kept, and evidently worthy of all the credit 

 which can be fairly accorded to a merchantman's Log in comparison 

 with that of a Man-of-War. This ship then, on the 22nd at Noon, 

 though her Barometer was still high had fresh gales at N. E. with 

 drizzling rain and a high rolling sea, which was no doubt the com- 

 mencement of her Cyclone, for at 8 it was " increasing with heavy seas* 

 from the N. West, S. E. and S. W." obliging her to close reef ; the 

 Barometer having fallen to 29.54 by 4 p. m. and standing at 29.58 at 

 midnight. Hence it would appear that she had at Noon a Cyclone to 

 the N. W. b. N. of her (wind N. E. b. E.) and that at midnight its 

 centre bore N. West of her, the wind being N. E., so that though she 

 had run 46-J- miles S. S. W. and 37 miles South, the Cyclone had 

 travelled down nearly with her like the Jumna's. I have projected 

 these circles but in part only, so as not to interfere with those of the 

 Jumna's track, though it must be recollected that at midnight 22nd and 



* The precursor swells of the Cyclone. 



