CONTENTS. 



PAGE, 



Annual Address of V. T. Chambers, Esq 71 



Notes on Some New or Little Known North American Limnseidae, 



by A. G. Wetherby, A.M 93 



Observations on Birds, by Charles Dury and L. K. Freeman 100 



Description of Twelve New Fossil Species, and Kemarks upon Others, 



by S. A. Miller 104 



Holocystites tumidus, n. sp 104 



Holocystites baculus, n. sp 105 



Holocystites rotundus, n. sp 107 



Holocystites subrotundus, n. sp 107 



Holocystites dyeri, n. sp 108 



Holocystites ventricosus, n. sp 108 



Anomalocrinus caponiforrais, (Lyon) 109 



Trichophycus venosum, n, sp 112 



Pisocriluis gemmiformis, n. sp . . 113 



Megistocrinus pileatus, n. sp 114 



Stephanocrinus osgoodensis, n. sp 116 



Paloeaster harrisi, n. sp 117 



Lichenocrinus pattersoni, n. sp 118 



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