1855.] A Twenty -fourth Memoir on the Law of Storms. 457 



Paet II. — Bemaeks. 



I now proceed to detail the considerations from which the tracks 

 of the Cyclones are laid down, and to add a few remarks on the 

 phenomena of the principal one. 



On the 12th May. — We have, first, the unfortunate ship London with a 

 fresh N. East breeze, to which she could just carry her main top-gallant 

 sail, running 8| knots to the S. W. or in the 3N". W. quadrant of her 

 Cyclone, which before midnight was a tremendous hurricane obliging her 

 to heave to at 10 hours 30 minutes p. m. when the wind was veering to 

 the Northward and N. West, so that the ship in the 80 or 90 miles of run 

 which she had made to this time had crossed in front of, and forced herself 

 close in towards the centre ; and at 2.30 a. m. of the 13th, lost her mizen 

 mast by one of the terrific squalls from Northwest, which she would 

 of course find there. If we allow the wind to have been North at 10 

 30 p. m. when the ship hove to, and that the centre then bore East from 

 her at a distance of 25 miles ; the most we can allow, seeing how rapidly 

 the wind veered with her from this time j this will place it at this hour 

 (10.30, p. m. 12th) in Lat. 15° T N. Long. 89° 20' East, and if it was 

 the same Cyclone as that which afterwards passed up over the Sunder- 

 bunds, it was travelling up at the rate of eight miles an hour, since it pass- 

 ed the station of Bagundee (see p. 425) at 418 miles N. \ West distant 

 from this position at 2 30 a. m. of the 15th, which gives an interval of 

 52 hours. None of the other ships were near enough at this time I 

 should consider, to feel the effects of the Cyclone as to wind, though the 

 sea and gloomy weather and their Barometers were all giving warning 

 on the following day. 



13th May. — We have on this day the Precursor Steamer though far to 

 the Westward, and the Eneas on the same parallel, but three degrees 

 farther to thr Eastward with gloomy and threatening indications 

 sufficient to induce them, very properly, to make due preparations, and 

 farther to the Northward we have the Limehouse with a heavy head sea 

 and the wind (not marked at Noon but before it, W. N. W. and p. m. 

 West) about W. by N. the gale constantly increasing. The Amazon to 

 the N. W. of her has at noon strong breezes from the N. W. with torrents 

 of rain and finally so many indications of a Cyclone to the N. East of 

 her, that she is very properly kept away to the S. S. E. to avoid the 

 centre. The winds of both these ships were probably iniiuenced by the 

 vicinity of the shore and by the monsoon, to which, also the high Baro- 

 meter of the Limehouse may be owing ; and if we admit the London's 



