WALKS AND TALKS 



IN THE 



GEOLOGICAL FIELD. 



o 



BY 



ALEXANDER WINCHELL, LL.D., 



PROFESSOR OF GEOLOGY AND PALEONTOLOGY IN THE UNIVERSITY 

 OF MICHIGAN. 







NEW YORK : 

 CHATJTXAUQTJTA PRESS. 



C. L. S. C. DEPARTMENT, 805 BROADWAY. 

 i8S6. 



