CONTENTS. 



PAGE 



Proceedings of the Society lUO 



Observations on Cincinnati Birds, by Franlc W, Langdon 110 



The Prehistoric Monuments of the Little Miami Valley, by Charles L. 



Metz, M. D. 119 



The Mound Builders of the Little Miami Valley, by S. S. Scoville, M. D. 128 



Description of Eight New Species of Holocystites from the Niagara 



Group, by S. A. Miller 129 



Remarks on some Lamellibranchiate Shells of the Hudson River Group, 



with Deiicriptions of Four New Species, by R. P. Whitfield. 137 



Oti Pionuba Yuccasella (Riley), and the Habits of some Tineina, by 



V. T. Chambers 141 



On the Deformities of some Tennessee Helices, by A. G. Wetherby . . 154 



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