{go THE POPULAR SCIENCE MONTHLY. 



teachers, in speaking of antipodal places. Thus, after the earthquake 

 at Lone Pine, California, and that which destroyed a part of the ancient 

 city of Antioch, the New York World published an article on these 

 phenomena, from the pen of a correspondent, entitled " The Antipodes 

 shaking." The editor of the World corrects its correspondent, who 

 supposes that Lone Pine and Antioch are antipodal, and says: "A 

 point immediately under Antioch is in the Pacific Ocean, ahout half- 

 waj- between San Francisco and the Sandwich Islands." These errors 

 were copied by other papers. 



The word antipodes is of Greek origin, from avrl, against, and 

 novg, afoot, and means literally, with feet opposite. Hence the Latin 

 w r ord antipodes, which is plural, and as a pure Latin plural should he 

 pronounced as in the original, or in four syllahles, an-tip-o-des. But, 

 as the English word antipode is used, the plural of this may he formed 

 regularly in three syllahles. This pronunciation is sanctioned hy Dr. 

 Webster, and may ultimately prevail. At present, however, the hest 

 scholars give the division and the accent of the pure Latin plural. 



The word literally signifies, those who have their feet against each 

 other, or, those whose feet point toward each other; that is, those 

 whose feet are diametrically opposite. As applied to geography, it 

 means, the dwellers at the opposite extremities of the diameter of the 

 earth. 



The perioeci, or periecians, are often mistaken for the antipodes. 

 The perioeci are the inhabitants on the opposite side of the globe, on 

 the same parallel of latitude. Hence, when people say that the antipo- 

 des of the Eastern States are in China, they mean the perioeci. 



Two antipodal parts of the earth have the same number of degrees 

 of latitude, one north and the other south, unless one of these points 

 is on the equator 



Two antipodal points must be on one and the same meridional 

 circle, separated from each other by half the circumference. 



Being on one and the same meridional circle, they may differ in 

 longitude 180, with the exception of the poles themselves, which have 

 no longitude. 



And being separated from each other by half the circumference, 

 they must be equidistant from the equator in opposite directions. 



The longitude of two antipodal points, if east and west longitude 

 is used, must together make up 180, or 12 hours, one east, and the 

 other west. The antipodes of a point in 40 north latitude and 60 

 east longitude are in 40 south latitude and 120 west longitude. The 

 antipodes of a place in the eastern part of the United States, situated 

 on parallel 40 north latitude, and on the meridian marked 7, must 

 be on the same parallel south latitude, and on that meridian which, 

 added to 7, will make up 180, or 173, wdiich would be in the South 

 Indian Ocean, a point between St. Paul's Island and Van Diemen's 

 Land This point would be antipodal to Boston or New York. 



