James Hall, State Geologist. 



Sir: — I herewith submit a brief account of the geology of the Naples 

 valley, designed to show in some detail the nature of the Portage section 

 in that meridian, and the stratigraphic relations of the. upper beds, originally 

 termed the Portage sandstones. 



Respectfully yours, 



D. DANA LUTHER. 



Naples, N. Y., March 28, 1896. 



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