102 Dr. Hare's Additional Objections to 



crowd of vessels having only to complain of the violence, not 

 of the direction of the wind. 



88. It has been assumed, that a storm whirling to the left 

 and travelling north-easterly, must, at stations passing nearly 

 under the centre, first blow as a south-easter and afterwards 

 gradually change to a north-wester. Meanwhile on the south- 

 eastern or left limb it will blow only from the south-west, and 

 on the north-western or right limb it will blow only from the 

 north-west. Consistently, when the storm travels from south- 

 east to north-west, as hurricanes are represented to travel in 

 proceeding from the sphere of their origin in the West Indies 

 to the coast of North America, it will at stations within a cer- 

 tain distance of a line described by the centre, blow from the 

 north-east first. On the south-western limb it will blow first 

 as a north-wester ; on the north-eastern limb as a south-easter. 

 Moreover, that on the last-mentioned limb the greatest vio- 

 lence will occur, since the general motion of the whirlwind 

 will there cooperate with that of the whirl. Yet in the fol- 

 lowing paragraph Mr. Redfield informs us (Silliman's Journal, 

 vol. xxv. p. 128), that " in the West Indies hurricanes begin 

 to blow from a northern quarter of the horizon, and then 

 changing to west and round to a southern quarter and then 

 their fury is over." 



89. This account of the direction of the wind in West India 

 hurricanes agrees with that quoted by Espy from Edwards's 

 History of Jamaica, vol. iii. : " All hurricanes begin from the 

 north, veer back to west-north-west, west, and south-south- 

 west, and when got to south-east, the foul weather breaks up." 



90. It must be evident, as stated among my " objections," 

 that when a whirl is first originated, whether it describe a 

 helix, as would result from its progressive circular motion, or 

 a circle, as represented by Mr. Redfield in his charts*, it 

 must at thirty-two stations equidistant from each other and 

 the centre of gyration, blow from as many points of the com- 

 pass. However, when once under way, it being granted that 

 the whirling is always from right to left, evidently at any sta- 

 tion near the line described by the centre, it will begin to blow 

 at right angles to that line or from the north-east. As the 

 centre advances this wind would gradually subside, and, after 

 the centre should have gone by, it would begin to blow from the 

 south-west with increasing force till the severe part of the south- 

 eastern limb should be passed. On this part of the track only 

 one change would take place. But at two stations sufficiently 

 remote from the central line, the wind in passing from north- 



* Franklin Journal, vol. xix. p. 120. 



