SCIENCE 



FOR THE 



SCHOOL AND FAMILY. 



PART III. 



MINERALOGY AND GEOLOGY. 



BY 



WORTHKGTOX HOOKER, M,D,, 



PROFESSOR OF THE THEORY AND PRACTICE OF MEDICINE IN YALE COLLEGE, 



AUTHOR OF u HUMAN PHYSIOLOGY," "CHILD'S BOOK OF NATURE," 



"NATURAL HISTORY," &C. 



tllustratett b$ nearlg too 



NEW YORK: 

 HARPER & BROTHERS, PUBLISHERS, 



FRANKLIN SQUARE. 



1865. 



