Earthquakes and other 

 Earth Movements. 



By JOHN MILNE, 



Prolessor of Mining ar.d Geology in the Imperial C'ollcg-e of Engineering, Tokio, .Jap;:r.. 



Witli 33 Illustrations. ... l£mo, cloth, $1.75. 



An attempt is marie in this vohime to pive a eystematic acconrt of various 

 Earih Movements. The^e comprise Earthqnakes, or the sudden violent move- 

 ments of the trround ; Earth Tremors, or minute movements which escape our 

 attention by the sraallness of their amplitude ; Earth I'lilsation^. or movements 

 which are overlooked on account of the length of their period; and Earth Oscilla- 

 tions, or movements of long period and larjie amplitude. 



" llavins cliosen Janan as the center of active seismic enerLaes, Mr. >alne has 

 had the fullest opp >rtuiiity of studying earthquakes, and this volume gives a eys- 

 tfiiiiatio account of various earth uiLVcments. Disturbances at sea, masnitude 

 of waves, velocity of propa'.iation, records of tides gauges, all find their place in 

 this volume. The m my questions of a co^miral character are all ably treated by 

 Professor Milne. One" would h;ive thought that Irom expeiience the Japanese 

 would have b:iilc earthquaUe-piojf houses, but Professor Milne says they have 

 not."— AVw York. Times. 



"In this little book Professor Milne ban endeavored to bring together aM that 

 is known concernin.' the natun; and c:ius:^8 of earthquake mcvemenis. Ilis tai^lc 

 was one of much difficulty. Professor Milne's excellent work in the fcience of 

 seismolo.'y has been done in Japan, in a region of incessant shocks of sufficient 

 enerizy to make observaiion possii le. yet, with rare exceptions, of no disastrous 

 effects. He has had the good fortune to be aided by Mr. Thomas Gray, a :;cn)le- 

 man of gre it constructive skill, as well as by Professors J. A. Ewing, W. P. Chap- 

 lin, and his othercolleii 'ues in the scientific colony which has gathered about the 

 Imperial University of Japin. To these gentlemen we owe tlie best of our sci- 

 ence of seismolo^'y, for before their achievements we had nothing ot value con- 

 cerning the physical conditions of earthquakes except the great works of Hohevt 

 Mallet? and M^illet, with all his genius and devotion to the subject, had but lew 

 ch:inces to observe the actual shocks, and to failed to understand many of their 

 important features."— 7A« Nation. 



" This volume contains a preat deal in the way of results of recent observrtion 

 that has never before been given to the reading public. A large part ot t'e ma- 

 terial used was obtained from experiment and criijinal investigation dnrint' an 

 eight years' residence in Japan, where the author had an opportunity of observ- 

 ing an earthquake on an average of once a week."— jy^w York Cluistian Urdcn. 



" The author considers the primary causes of earthquakes to be tellutic heats, 

 solar heat, and variations in gravitating inflneiices. Among the secondary causes 

 are expansions and contractions of the earth's crust, variations in temperature, 

 bJrometrical pressure, rain, wind, etc. Some are due to explosions of sleain 

 beneath the crust of the earth, others to chemical action forming caverns in the 

 earth which give way, and still others to volcanic evisceration. The subject in 

 all its bearings is exhaustively treated in (he light of the latest researches, and 

 affords a very interesting study of a class of natnial phenomena which have al- 

 ways been involved in more or less obscarity. "—Cfiicago Eiening Journal. 



'• Although it is addresee.i to a special class of readers, it has an interest " bich 

 may be said to be universal. It will surprise readers to be told thit leaily two 

 thousand works have besn published on the pariicular subject of earthqu!il:es. In 

 Chini a counnission was appointed more than 1700 years ago to investitate the 

 causes of these phenomena, and sixty-five works exist in the Japane-e language 

 devoted lo their sciiniiflc consideration. The first part of this work deals ivith 

 the various movements, oscillations, and tremors of the earth, with their effects; 

 the later chapters bsing devoted to the theories of various writers on the phe- 

 nomena. The volume is well illustrated."— Bo,<ton Evening Trafiscript. 



New York: D. APrLETOX & CO., 1, 3, & n Bond Street. 



