912 Eighteenth Memoir on the Law of Storms, [Sept. 



We have to add to this that seven ships and brigs, exclusive of coast- 

 ing craft are known to have foundered, whether from mismanagement 

 or bad condition, or under unavoidable circumstances, we cannot say, 

 and that the ships Collingwood, Camperdown and Sea Park had on 

 board 733 men, 11 officers, 46 women and 41 children ; altogether 831 

 souls ; of H. M. troops, which we may fairly call a whole regiment ; two 

 thirds of which, i. e. those on board of Collingwood and Camperdown 

 were exposed for a time to imminent risk. There surely wants nothing 

 more than this to convince the most incredulous of the deep importance 

 of our science to both public and private interests ? 



Part V. 



Practical deductions for the Management of inward and outward 

 bound ships, at or nearing the Sandheads, when a Cyclone is ap- 

 proaching. 



The great objects of all these researches are, first to develop the 

 laws by which Cyclones are governed, and then from such laws to 

 deduce rules for every special class of cases whereby life and proper- 

 ty may be rendered more secure. In no part of the ocean are such 

 rules more required than at the difficult access to the mouth of the 

 Hooghly ; and in no part, as far as I recollect, is there to be found a 

 more perplexing combination of dangers at the approach of a Cyclone. 

 I have long contemplated the task of unravelling this complicated net- 

 work of perils, but I have felt, hitherto, that our data were too insuffi- 

 cient to enable me to speak with confidence on many essential points, 

 and to illustrate what I might say with undoubted and striking exam- 

 ples. In a word, if I may be excused the phrase, " we wanted a good 

 Cyclone with plenty of ships involved in it to give us some clear and 

 startling lessons" and I trust, now that we have had one, the forego- 

 ing pages will prove that I have done my best to turn to account the 

 materials which have been so liberally furnished, and that I shall not 

 be found to have set down these rules without duly weighing the 

 heavy responsibility of doing so. 



Let us consider what are the various dangers in a Cyclone to a ship 

 at (within) or near the Sandheads where they invariably commence from 

 between N. N. E. to N. E,, East or S. E. 



