64 Eleventh Memoir on the Law of Storms in India. QNo. 157. 



that we can only mark this as an approximation. Her rapid change of 

 wind, however, and her distance from the Candahar on this day, which 

 was nearly, or quite, three degrees of Long, exclude the idea of its 

 being the same storm, and I have placed its centre, approximately, close 

 to the Niagara in Lat. 9° 55' N. Long. 86° 55' E. 



We now come to the Candahar, Mary Imrie and Vernon on this 

 day, and here we must first remark on the Candahar's position 

 which must be I should think erroneously given,* for she was lying to 

 with a tremendous heavy gale from North Westward veering at one 

 time to N. by E. and again to N. W. by W. and yet she has made near- 

 ly a Northerly course ! This is of course impossible, unless we suppose 

 her to have been carried as far to the West by the storm wave as she 

 was drifted to the East by the wind and storm current, both of which 

 tended to carry her to the East and E. S. E. and her position indeed 

 on this day can but be an estimated one : I did not observe this at the 

 time I made the extract, and there may be some clerical error of my 

 own. It is now too late to rectify it, and we must therefore allow that 

 one way or the other there is an error between these two days. The 

 Vernon's position was certainly correct but then she had only a " strong 

 breeze" with her Barometer at 29.68. and we cannot thus allow her to 

 have been in the storm though close to the outskirts of it. The Mary 

 Imrie was running free and had an observation, so that her position 

 may be taken as nearly correct, but we have unfortunately the wind 

 but loosely given as veering " to the Westward" (from the N. N. E.) 

 after noon. We may guess it to have been about North or to the West- 

 ward of it, at Noon which placing the Candahar, somewhat further to 

 the Eastward, if we please, will give us a spot in about Lat. 10° 18' 

 Long. 84° 2' E. as the approximate position of the centre of this storm 

 on this day which was evidently passing the meridian of these ships 

 and close to the Candahar, and this apparently on a track to the 

 Southward of West. 



The difference of their positions indeed is but 28 miles, an error 

 which might easily occur with the Candahar, having no observation. 

 The repeated shifts of wind from N. W. to S. W. may be accounted 

 for very simply, by reflecting that when near to or in the central space, 

 there are many causes such as irregular blasts, storm wave and cur- 



* Or that of the day preceding may be so ? 



