GEOLOGY: GENERAL, NORTH AMERICAN. 1-15 



NATURALISTS' DIRECTORY. 



GEOLOGY, 

 GENERAL. 



1. Prof. Louis AGASSIZ (Professor of Zoology and Geology, Harvard 

 University; Director and Curator, Museum of Comparative 

 Zoology), Cambridge, Mass. 



2. Prof. JAMES D. DANA (Professor of Geology and Mineralogy, 

 Yale College), New Haven, Conn. 



3. Prof. JAMES HALL (State Geologist of New York, Iowa and 

 Wisconsin), Albany, N. Y. 



4. Sir WILLIAM E. LOGAN (Director, Geological Survey of Canada), 

 Montreal, Canada. 



5. Prof. H. D. ROGERS, Boston, Mass. 



G. Prof. WM. B. ROGERS (President, Massachusetts Institute of 

 Technology; Corresponding Secretary, American Academy of 

 Arts and Sciences), Boston, Mass. 



NORTH AMERICAN. 



7. *Prof. WM. E. A. AIKEX (Professor of Chemistry, Baltimore 

 University), Baltimore, Md. 



8. *HENRY D' ALIGNY, Houghton, Mich. 



9. Prof. E. B. ANDREWS (Professor of Chemistry, Mineralogy and 

 Geology, Marietta College), Marietta, Ohio. 



10. Prof. L. W. BAILEY (Professor of Chemistry and Natural History, 

 University of New Brunswick), Fredericton, New Brunswick. 



11. Prof. ROBERT BELL (Professor of Natural History, Chemistry 

 and Geology, Queen's College), Kingston, Canada West. 



12. Prof. JAMES G. BLAIR, Athens, Ohio. 



13. W. P. BLAKE, Post office box 2077, San Francisco, Cal. 



14. *G. C. BROADHEAD, Pleasant Hill, Cass Co., Mo. 



15. *Prof. CHARLES F. CHANDLER (Professor of Chemistry, School 

 of Mines, ' Columbia College), East Forty-ninth street, New, 

 York, N. Y. 



