REVIEWS. 547 

























mud, were found partly melted. Arica this time wholly 
escaped, although the shocks were felt all over Peru. In 
1831, after nearly a century’s rest from any fatal shocks, 
_ Arica was destroyed for the fifth or sixth time since the 
landing of the Spaniards, some three hundred years since. 
_ These are only the most severe shocks which have disturbed 
this region. Others, that anywhere else would attract at- 
tention, here pass almost unnoticed. Indeed it has been 
Said that the Andes are continually quaking in some part, 
although severe shocks have seldom visited the eastern 
Slope. 
The volcanoes nearest the cities of Arica and Arequipa are 
i of great height ; Sahama, near the former, being 23,914 feet, 
while Miste, near the latter, is 18,877 feet high, and fre- 
quently in gentle eruption. 
= With such an array of terrible Pa it would be hard 
Z here to insist, with any chance of being believed, that earth- 
quakes are, by no means, nuisances, and, that on the con- 
_ wary, they are portions of God’s operations in Nature most 
_ beneficial and useful. The tides of the ocean are useful, 
that every one knows, although they leave bare and pestilent 
Marshes and flats; and these “irregalar tides of the land have 
none the less their uses in breaking up and altering the sur- 
of the earth, changing watercourses, altering the shore- 
ie, and in other ways, ade description can hardly be 
condensed into the limits of this article. 


REVIEWS. 
a 
Tur VARIATION OF ANIMALS AND PLANTS UNDER DOMESTICATION. *— 
oy See are the first of the suite promised by the author in his work 
yi Origin of Species,” and are filled with facts of his own observa- 

Ame sheesh mals and shea s under nerve anes bed Charles Darwin. a a 
Published ver Eatin, with a Preface by Professor Asa con vols, 12mo, pp- d 
udd & Co., 245 Scien, New Yor. 
