Earthquakes and other 

 Earth Movements. 



By JOHN MIINE, 



Professor of Mining and Geology in the Imperial College of Engineering, Tokio, Japan. 



With 33 Illustrations. 



lZva.0, clotli, $1.75. 



An attempt is made in this volume to give a systematic acconr.t of varions 

 Barth Movements. These comprise Eart/iguakes, or the sudden violent move- 

 ments of the ground ; Eaiih Tremors, or minute movements which escape our 

 attention by the smallnesa of their amplitude ; Earth J'ulsiUion?, or movemenls 

 which are overlooked on account of the length of their period; aadEart/i Oeeilla- 

 tions, or movemeutd of long period and large amplilude. 



"Having chosen Japan as the center of active seismic energies, Mr.-TVTilne has 

 had the fullest opportunity of studying earthquakes, and this volume gives a sys- 

 tematic account of various earth movemenls. Diplurbances at sea, masmitude 

 of waves, velocity of propagation, records of tides gauges, all find their place in 

 this volume. The msmy que'iitions of a cosmical character are all ably treated by 

 Professor Milne. One would have thought that Irom experience the Japanese 

 would have built earthquake-proof houses, but Professor Milne says they have 

 not."— 2V«w York Times. 



" In this little hook Professor Milne has endeavored to bring together all that 

 is known concerning the nature and caust^s of earthquake movemenis. His task 

 was cue of much difficulty. Professor Hilne's excellent work in the science of 

 seismolo^ has been done in Japan, in a re^on of incessant shocks of snfiBclent 

 energy to make observation possible, yet, with rare exceptions, of no disastrous 

 effects. He has had the good fortune to be aided by Mr. Thomas Grar, a L'enlle- 

 man of greit constructive skill, as well as by Professors J. A. Ewing, W. S. Chap- 

 lin, and his other collea^mes in the scientific colony which has gathered about the 

 Imperial University of Japan. To these gentlemen we owe the best of our sci- 

 ence of seismology, for before their achievements we had nothing of value con- 

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

 Mallet; and Mallet, with all his genius and devotion to the subject, had but lew 

 chances to observe the actual shocks, and bo failed to understand many of their 

 important features." — The Nation. 



" This volume contains a great deal in the wayof results of recent observation 

 that has never before been given to the reading public. A large part of the ma- 

 terial used was obtained from experiment ana original investigation during on 

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

 ing an earthquake on an average of once a week."— Aew York Chnsiian Vnion. 

 "The author considers the primar.v causes of earthquakes to be telluric heats, 

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

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

 barometrical pressure, rain, wind, etc. Some are due to explosions of steam 

 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 the light of the latest researches, and 

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

 ways been involved in more or less obscurity."— CAicoyo Evening Journal. 



'■Although it is addressed to a special class of readers, it has an interest which 

 may be said to be universal. It will surprise readers to he told that nearly two 

 thousand works have been published on the particular subject of earthquakes. In 

 China a commission was appointed more than 1700 vears ago to investigate the 

 causes of these phenomena, and sixty-five works exist in the Japanese laugnaL'e 

 devoted to their scientific consideration. The first part of this work deals with 

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

 "■- '-'"■■ chapters being devoted to the theories of varions writers on the phe- 

 The volume is well illustrated."— Boston Evening Transcript. 



the later chapters 

 nomena. 



New York: D. APPLETON & CO., 1( 3, & 5 Bond Street. 



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