MANUAL 



t /W/ 



GEOLOGY: 



TREATING OF THE PRINCIPLES OF THE SCIENCE 



WITH SPECIAL REFERENCE TO 



AMERICAN GEOLOGICAL HISTORY, 



JAMES D/DANA, 



SILLLMAN PEOPESSOR OF GEOLOGY AND MINERALOGY IN YALE COLLEGE : AUTHOR OP A SYSTEM OP 



mineralogy; corals and coral islands; reports op WILKES'S EXPLORING EXPEDITION, 



ON GEOLOGY, ON ZOOPHYTES, AND ON CRUSTACEA, ETC. 



Nunquam aliud natura aliud sapientia dicet. — Juv. 



Licet jam oculis quodaramodo contemplari pulchritudinem rerum earum, quas divina 



provider! tia dicimus constitutas. — Cic. 



ILLUSTRATED BY OVER ELEVEN HUNDRED FIGURES, MOSTLY FROM AMERICAN 

 SOURCES, AND A CHART OF THE WORLD. 



SECOND EDITION. 



53^^% 



UbrpmM* 



NEW YORK: 

 IVISON, BLAKEMAN, TAYLOR, AND CO., PUBLISHERS. 



1875. 



