THE 



ELEMENTS OF GEOLOGY, 



FOR POPULAR USE; 



CONTAINING 



4 DESCRIPTION OF THE GEOLOGICAL FORMATIONS 

 AND MINERAL RESOURCES 



UNITED STATES. 



CHARLES A. LEE, M.D., 



LATE PROFESSOR OP MATERIA MEDICA AND MEDICAL 

 JURISPRUDENCE IN THE UNIVERSITY OF THE 

 CITY OF NEW-YORK. 



NEW-YOR K.- 

 HARPER & BROTHERS, 82 CLIFF-STREET 



