TEXT-BOOKS ON GEOLOGY 



By JAMES D. DANA, LL.D., late Professor of Geology 

 and Mineralogy, Yale University 



Geological Story Briefly Told . . .j5l.I5 



Revised Text-Book of Geology, Fifth Edition (Rice) . . 1.40 

 Manual of Geology. Fourth Edition . . 5.00 



THE present edition of the GEOLOGICAL STORY 

 was the last considerable work of the eminent author's 

 long life. As geology is emphatically an outdoor 

 science, the student is urged to study the quarries, bluffs, and 

 ledges of rock in his vicinity, and all places that illustrate 

 geological operations. The prefatory suggestions are full of 

 practical help, besides enumerating the tools and specimens 

 desirable for this study. 



*j\ The REVISED TEXT-BOOK OF GEOLOGY is here 

 brought down to the present time as regards its facts, but it 

 still expresses the views of its distinguished author. While 

 the general plan and the distinctive features have been pre- 

 served as far as possible, a few important changes have been 

 made relating mainly to zoological and botanical classifications, 

 to the bearings of geology and paleontology upon the theory 

 of evolution, and to metamorphism. The order of the grand 

 divisions of the science, physiographic, structural, dynamical 

 and historical, remains the same as in previous editions. 

 •[[ The present edition of the MANUAL OF GEOLOGY 

 was wholly rewritten under the author's direction. Owing 

 to the extensive recent investigations, new principles, new 

 theories, new facts relating to all departments of the science, 

 and widely diverging opinions on various questions have all 

 made their contributions to this book. The later tracing of 

 formations and mountain-making, the increased number of 

 fossils, the study of canons and other results of erosion, and 

 the development of petrology are all prominently treated here. 



AMERICAN BOOK COMPANY 



(177) 



