CONTENTS 



A remarkable occurrence ofOrthoceras in the Oneonta 

 beds of the Chenango valley, N. Y., by John M. Clarke 167 



Paropsonema crYptophya;a peculiar echinoderm 

 from the Intumescens-zone (Portage beds) of western New 

 York, by John M. Clarke 172 



Dictyonine hexactinellid sponges from the Upper Devonic of 

 New York, by John M. Clarke 187 



The water biscuit of Squaw island, Canandaigua lake, N. Y., 

 by John M. Clarke 195 



Preliminary descriptions of new genera of Paleozoic rugose 

 corals, by George B. Simpson 199 



Siluric fungi from western Xew^ York, by Frederic B. 

 Loomis 223 



