CONTENTS. 



Proceedings of the Society 1 



Remarks on the Genus Pterotocrinits, by A. G. Wetherby 3 



Descriptions of New Genera and Species of Fossils from the Lower 



Silurian about Cincinnati, by E. O. Ulrich 8 



Leperdltia radiata, n. sp 9 



Leperditia crepiformis, n. sp 10 



Leperdltia unicornis, n. s p 10 



Leperditia bivertex, n. sp 11 



Beyrichia persulcata, n. sp 12 



Cyrtolites nitidulus, n. sp 12 



Microceras minutissimum n. sp 13 



Cyclora depressa, n. sp 13 



Zygospira concentriea, n. sp. 14 



Orthis? sectostriata, n. sp 15 



Leptaena plicatella, n. sp. 15 



Heterocrinus geniculatus, n. sp 16 



Dendrocrinus ( ?) curtus, n. sp 18 



Paleaster flnei, n. sp. . 19 



Lepidolites, n. gen. . . 20 



Lepidolites dickhauti, n. sp. . 21 



Lepidolites elongatus, n. sp 22 



Orthodesma subovale, n, sp 22 



Tellinomya cingulata, n. sp 23 



Nuculites yoldiaformis, n, sp 24 



Pterinea mucronata, n. sp 24 



Cleidophorus ellipticus, n. sp. . . 25 



Cleidophorus major, n. sp 25 



Ropalonaria, nov. gen. 26 



Ropalonaria venosa, n. sp. 26 



Chajtetes compressus, n. sp 27 



Fistulipora flabellata, n. sp 28 



Inocaulis arbuscula, n. sp 28 



Crateripora, nov. gen . . .29 



Crateripora lineata, n. sp* 29 



Crateripora lineata, var. expansa 30 



Crateripora'erecta, n. sp 30 



Remarks upon the Kaskasliia Group, and Descriptions of New Species 



of Fossils from Pulaski County, Kentuckj', by S. A. Miller 31 



Poteriocrinus wetherbyi, n. sp. 36 



Eupachycr'nus spartarius, n. sp .38 



Eupachj'crinus germanus 40 



Lepidesthes formosus, n. sp 41 



Catalogue of the Flowering Plants, Ferns and Fungi Growing in th6 



Vicinity of Cincinnati, by Joseph F. James 42 



Jleviews and Book Notices 68 



TEEMS : $2 00 per volume ; single number, 60 cents. 



