Jfc 





4"T0 . 

 MANUAL ^7 



GEOLOGY: 



TREATING OF THE PRINCIPLES OF THE SCIENCE 



WITH SPECIAL REFERENCE TO 



AMERICAN GEOLOGICAL HISTORY, 



JAMES D.DANA, 



silltman professor op geology and mineralogy in yale college: author op a system op 



mineralogy; corals and coral islands; reports of wtlkes's exploring expedition, 



on geology, on zoophytes, and on crustacea, etc. 



Nnnquam aliud natura aliud sapientia dicet. — Juv. 



Licet jam oculis quodammodo eontemplari pulchritudinem rerum earum, quas divina 



providentia dicimus constitutas. — Cic. 



ILLUSTRATED BY OVER ELEVEN HUNDRED AND FIFTY FIGURES IN THE TEXT, 

 TWELVE PLATES, AND A CHART OF THE WORLD. 



THIRD EDITION. 



( QOCT 10 jl 



NEW YORK • : • CINCINNATI • : • CHICAGO 



AMERICAN BOOK COMPANY 



from the press of 

 Ivison, Blakeman & Company. 



