284 



THE ATMOSPHEEE AND METEOEOLOGY. 



be foretold by sailors. In tlie northern hemisphere, the revolving storms 

 of the tropics constantly blow from the south to the north by the east, and 

 from the north to the south by the west ; in the southern hemisphere, 

 the path taken by the whirlwinds is in the opposite direction, and the 

 spirals of the wind are uniformly developed by the south, the west, 

 the north, and the east. Such is the law discovered and brought to 

 light by the labours of Eeid, Eedfield, Piddington, Bridet, and 

 other savants. Thus, winds from all parts of the horizon blow at the 

 same time round the circumference of the cyclone ; one ship is pur- 

 sued by a furious wind from the east, while at 50 miles distant 

 another vessel is sunk by gales coming from the west. And during 

 all these tumults of warring elements, it sometimes happens that at 



Fig. 114.— Cyclone in the Indian Ocean in Feb., 1860. 



