VIU PEEFACE. 



Italian sources I have to thank Dr. F. Du Bois, from 

 German sources Professor C. Netto, and from Japanese 

 sources Mr. B. H. Chamberlain. For help in carrying 

 out experiments, I am indebted to the liberality of the 

 British Association, the Greological Society of London, the 

 JMeteorological and Telegraph departments of Japan, and 

 to the officers of my own institution, the Imperial College 

 of Engineering. 



And, lastly, I offer my sincere thanks to those gentle- 

 men who have taken part in the establishment and 

 working of the Seismological Society of Japan, and to my 

 publishers, whose liberality has enabled me to place the 

 labours of residents in the Far East before the European 

 public. 



John Milne, 



ToKio, Japan ; Jvne 30, 1883 



