HUEEICANES. 



235 



the arrow and corresponding line on the inner or movable circle, will be 

 from E.N.E. ; then revolve the upper circle in the direction of the arrows, 

 and the changes of the wind will be seen as they occur progressively on 

 the spot marked, supposing the storm to be encountered in low latitudes, 

 when on its line of progression to the North-Westward. It will thus be 

 seen that on the N.E. verge of the Hurricane, the wind will come from 

 the S.E. ; on the North verge the wind will be East ; and if on the West 

 it will be Northerly, as shown in the figure. Thus, the changes of the wind 

 will be to the Eastward, going round to the S.E. and South, and ending 

 with it at about S.W. by S. The subject, when considered, will be reaoily 



understood ; only bearing in mind that the shifts of wind will appear, 

 in most cases, to be from left to right, while the wind is actually revolving 

 in the contrary direction. 



The direction of the wind is almost independent of the progression of the 

 Storm ; and as the current of air sweeps round the centre in a more or less 

 circular path, it follows that, under every point of the horizon, there will 



