74 Eleventh Memoir on the Law of Storms in India. [No. 157- 



made by her, from point to point, was but 354 miles. Now, if like 

 the Charles Heddle, any of our ships in this November storm had 

 scudded the whole time, they might undoubtedly have made much 

 such a set of circles as you see on my chart, and yet have made but a 

 trifle of direct distance in the whole five days ; and in a word we can, 

 so to say, prove by this Memoir that there is nothing at all of romance 

 in her account, and that she has been performing for us a very curious 

 and beautiful experiment ; as cleverly as if she had been sent out to 

 do it ! The investigation of this and the other Mauritius storms 

 for which I have data, will, I doubt not, lead to other equally im- 

 portant and curious facts in that dangerous quarter of which seamen 

 as yet know so little, but the difficulties and trouble of obtaining log 

 books are positively incredible." 



The value of this experiment as a proof of the circular theory 

 generally, if it requires any now, and of the truth of our researches I 

 need not dilate upon. In a future Memoir I trust to be able to bring 

 forward a great deal more in relation to the tracks and other peculiari- 

 ties of the storms of the Southern Hemisphere. 



Note. — While the last sheets of this Memoir were passing through the press, I obtain- 

 ed by the kindness of Capt. J.Viall, the log of the ship John Brightman, just arrived from 

 the Mauritius, and which ship it will be recollected was seen by the Fyzulbarry on 

 the 28th November, (page 14,) being bound to the Southward. This log, while it corro- 

 borates exactly the general direction of the track of the Fyzulbarry's storm, enables us 

 to correct the place of the centre for the 29th, which being laid down from the log of 

 a single ship, without observation, is necessarily subject to error, though here as so fre- 

 quently before, the error does not amount to much, and all the relative data for 

 practical purposes on board either of the ships in the storm, would have been the same : 

 as for the management of a ship, what is required to be known, is the bearing of the 

 centre of the hurricane, and the track of the storm, provided there be ample sea room. 



From midnight 11th November.— The John Brightman had heavy squally weather 

 and winds from East to E. S. E., and N. N. E. She was at noon in Lat. 9° 48' N., 

 Long.87°44' E., Bar. at 29.63. (having been at 29.71. at noon 26th, since which time 

 she had run down South, and S. b. W., 138 miles.) P. m. wind E. b. S., and E. S. E. 

 to midnight, when it was a strong gale with a tremendous cross sea, the vessel having 

 always run to the South and S. b. E. to midnight 56 miles. Bar. 29.58. 



28^ Nov. — Wind and weather the same, 7 a. m. wind E. N. E., Noon strong gale and 

 high sea, Lat. indifferent Obs. 7.48 N., Long. 87° 48' E., p. m. wind E. N. E., East, 

 and E. S. E. to midnight when Bar. 29.41. Ship's run from noon between S. S. E. and 

 South 53£ miles. 



2dth Nov. — Hard gales, squalls, and sea continuing as before from East, E. S. E., 

 and E. b. N,, Noon more moderate, but weather looking very suspicious, Lat. Acct. 

 6° 03' N., Long. 87° 58' East. Bar. 29.30. Ther. 83°. Ship's course from midnight 

 to noon South to S. S. E., 51g miles, p. m. wind veering from E. b. N. at noon, to N. 

 E. b. N., and N. W. to West, and by 4 p. m. to W. b. S., light variable winds and 

 thick weather. At 2 p. M. breeze increasing, thick unsettled weather, Bar. 29.24. At 

 4 p. m. fresh gales W. b. S. hove to. At 8 heavy gales and vivid lightning with rain 

 and squalls, Bar. 29.28. Midnight Bar. 29.20. 



3>0th Nov. — a. m. to noon hove to. Bar. rising to 29.36. ; at noon Ther. 83°, wind 

 W. S. W. Lat. by indifft. Obs. and Acct. 5° 46' N., Long. Acct. 88° 31' East., p. m. 

 Wind S. W. and at 5 p. m. S. S. W., weather moderating. Midnight Bar. 29. 49. Wind 

 South at 5 p. m., and S. S. E. by noon 1st December when Lat. 5° 19' N., Long. 

 Chr. 90° 16' E. Ther. 84°, Bar. 29.59. 



