436 A Second Memoir with reference to [No. 100. 



The Balguerie, . . 29.66, being also 00.71 higher, than on the 12th. 



We have unfortunately no comparisons in Calcutta for these Baro- 

 meters; if we had so, they might have proved of great value. That of 

 the i( Ganges" was probably too low. 



On the 14th, at noon, we have (Diagram, No. III.) 



Ganges, wind about SE. clearing a little, heavy sea, Bar. 29.20. 



Arethusa, NE. increasing strong gales and squalls. 



Ripley, North, heavy gales, 29.65. 



Rosalind, about NbE. hard gales and stormy. 



The " Bedford" it is worth remarking, had her barometer again falling 

 on this day, with very heavy weather from the eastward. The above 

 winds, and positions of the ships, place the centre in about 14° 28' N. 

 87°11'E. 



On the 15th, at noon, we have (Diagram, No. IV) the " Arethusa" 

 on her beam ends, in a hurricane which veered in 18 hours— or from 

 3 a. m. when it was at NE. to 9 p. m. when it was at SSW. and 

 moderating — 22 points ; or about \\ point in an hour. I presume that 

 she must have been blown round the western side of the vortex, though 

 so far clear of its centre, that the calm which is usually found when 

 the ships cross the centre, and experience sudden shifts, did not occur 

 with her. The " Ripley" we find also in pretty nearly a hurricane as to 

 the force of the wind. Her barometer as low as 29.25 at noon, when 

 we find the wind WNW. veering to WSW. by 6 p. m., or about 

 four points in six hours, or at the rate of about f of a point in an hour; 

 from which we should conclude, she was farther from the centre than 

 the, "Arethusa*" The "Rosalind" had a hurricane at from WbN. at 

 2 a. m. to SW. and SSW. at 1 p. m., or veering seven points in 

 11 hours, or also about f of a point in an hour; from which coincidence, 

 and the direction of the wind, I have placed her on the same circle as 

 the " Ripley," having most unfortunately no better datum to go by. 



We have thus on this day, curiously enough, three ships blown each 

 half or two-thirds round a circle ! For the unprofessional reader should 

 be told, that in weather such as is described in the vessels logs, of 

 which I have always carefully preserved the expressions, a vessel does 

 little more than drift bodily to leeward, as the wind veers with her. 



It will be observed, as to the extent of the storm, that the " Ganges," 

 and " Balguerie" had both the weather moderating, and were getting far- 

 ther from the centre. The " Bedford" and (( Cashmere Merchant," how- 



