Completion of 



Ghamberlin and Salisbury's 



Geology 



THOMAS C. GHAMBERLIN and ROLLIN D. SALISBURY 

 Professors in the University of Chicago 



(American Science Series, Advanced Course.) 

 3 Volumes 8vo. 



Volume I. Processes and Their Results. xix + 654 pp. $4.00. 

 Volumes II and III. Earth History. xxvi + 692 + xi + 624 pp. 



K«/j. II and III not sold separately. $8.00 



Chas. D. Walcott, Director of U. S. Geological Survey: — I am 

 impressed with the admirable pl.m of the work and with the thorough 

 manner in which geological principles and processes and their results 

 have been presented. The text is written in an entertaining st}-le, 

 and is supplemented by admirable illustrations, so that the student 

 cannot fail to < 'btain a clear idea of the nature and work of geological 

 agencies, of the present status of the science, and of the spirit which 

 actuates the working geologist. 



Israel C. Russell, Professor in the University of Michigan: — 

 The work is certainly monumental, and, like Lyell's Principles of 

 Geology, will in the future, I am confident, be recognized as marking 

 the beginning of a new period in the development of the science of 

 the earth. 



R. S. Woodward, Director of the Carnegie Institution : — It is 

 admirable for its science, admirable for its literary perfection, and ad- 

 mirable for its unequalled illustrations. 



(over) 



