1848,] Sixteenth Memoir on the Law of Storms, 521 



of heavy and hurricane weather ; the exact drift being S. 87° W. 214 

 miles, but as it was undoubtedly at the highest rate when the vessel was 

 nearest the centre, we may call the drift 3^ degrees of westing and 12' of 

 southing, and allowing the southing, which is a trifle, to have been made 

 equally on each day allow this to be a westerly or storm-wave drift. — 



For the 27-28th, when the gale increased to hurricane violence, of one 

 degree, which would give us as a corrected position for the 28th, Lat. 

 13.22. Long. 78.35 East of Gr. 



For the 28th to 29th of two degrees, giving for the 29th, Lat. 13°51 

 S. Long. 76° 58 / E. of Gr. 



For the 30th, being at the close of the gale, of half a degree, giving 

 for that day Lat. 13° 59' S. Long. 77° 06 ; E. Gr. 



On the 31st the position as shown by observations is 14° 54', S. Long. 

 76.24, E. of Gr. and these corrected positions are thus marked on the 

 chart. They are, it is true, to some extent uncertain, but the log is 

 very well kept and the leeway carefully marked, and had the difference 

 between the position and account been owing to the drift or storm 

 current it would have been an excess of southing and not of westing, 

 the wind throughout being from N. N. E, to N. N. W. This is 

 therefore a distinct case of the storm-wave. 



Abridged Log of the Ship Cove, Capt. S pratt, from Calcutta to the 

 Mauritius — Civil time. 



On the 23d March 1S46— the Cove was at noon in Lat. 11° 18 y 

 S. Long. 79° 46 ; E. having run from midnight with a smart rainy 

 breeze variable from N. N. W. and N. N. E. to the S. Westward, but at 

 noon it was calm and rainy with a high sea from S. W. and also a N. 

 Westerly one, creating a very confused sea together, p. m. calm, rain 

 and variable, but at 8 p. m. breeze increasing to a gale ; at 9 windE. S. 

 E. with hard squalls, rain and high sea. 



24th March. — Gale increasing to noon with a high S. E. sea. Lat. 

 Acct. 12° 49' S. Long. 77° 46* E. p. m. wind S. E. ship running till 

 midnight to the S. W. and S. W. b. W. 



25th March. — The same wind, but fine weather though with 

 hard squalls at times. Lat. Acct. 14° 15 7 S. Long. 75° 16'. p. m. 

 p. m. The same, decreasing at midnight to a fresh breeze but a heavy 

 sea breaking on board at times. 



