Geology (Advanced Course) 



By T. C. Chamberlin and R. D. Salisbury, Heads of the Department 

 of Geography and Geology, University of Chicago. Three Volumes 

 (sold separately), 2 is. net each. Vol. I. Processes and their 

 Results. Vol. II. Earth History — Genesis, Paleozoic. Vol. III. 

 Earth History — Mesozoic, Cenozoic. 



In the preparation of this work it has been the purpose of the authors 

 to present an outline of the salient features of geology, as now developed, 

 encumbered as httle as possible by technicalities and details whose bearings 

 on the theme are unimportant. In common with most writers of text* 

 books on geology, the authors believe that the subject is best approached 

 by a study of the forces and processes now in operation, and of the results 

 which these forces and processes are now bringing about. Such a study 

 necessarily involves a consideration of the principles which govern the 

 activities of geologic agencies. These topics are presented in Volume I., 

 and prepare the way for the study of the history of past ages, which is 

 outlined in Volumes II. and III. 



Press Opinions 

 "(Vol. I.) The student . . . may at once be assured that it is a 

 sound, vigorously written work, abounding in original information and 

 suggestions, and abreast of the ever-expanding knowledge to which 

 American geologists have so largely contributed." — Nature. 



"(Vols. IF. and III.) Certain branches of geology, notably those 

 involving the application of the principles of physics, are treated in these 

 volumes more fully and more satisfactorily than in any other work that can 

 be conveniently consulted . . . there is no gainsaying the fact that 

 Professors Chamberlin and Salisbury have produced a very suggestive 

 work, which is likely to exert a marked influence on the teaching of geology 

 in all EngUsh-speaking countries." — AthencBum. 



BY THE SAME AUTHORS 



Geology (Shorter Course) 



With 21 Coloured Plates and 608 Illustrations. 2 is. net. 



Guided by their experience as teachers, the authors have in this 

 book treated their subject, the history of the earth, as a unit, and 

 little emphasis has been laid on the commonly recognised subdivisions of 

 the science, but prominence is given to the historical element, though this 

 does not mean that other phases of geology have been neglected. Through- 

 out the work, the central purpose has been to set forth the present status 

 of knowledge, but to present it so that the student will be introduced to 

 the methods and spirit of the science. 



An Introduction to Modern Geology 



By R. D. Roberts, M.A. (Cantab.), D.Sc. (Lond.) With Coloured 

 Maps and Illustrations. 5s. 



LONDON: JOHN MURRAY, ALBEMARLE STREET, W. 



