IV 



INDEX. 



Lithocolletis quinquenotella 189 



sexnotella 189 



solidaginisella 190 



Megistoorinus pileatus 114 



Microceras miniitissirnuin 13 



Miller, S. A., remarks upon the Kas- 

 kaskia group, and descriptions 

 of new species of fossils from 



Pulaski county, Kentucky 31 



Description of 12 new fossil spe- 

 cies, and remarks upon others. 104 

 North American Mesoznic and 

 Cffinozoic Geology and Palreon- 



tology 140 



Silurian lehnolites, with defi- 

 nitions of new genera and spe- 

 cies 217 



North American Mesozoic and 

 Gsenozoic Geology and Palaeon- 

 tology continued 223 



Description of two new species 

 from the Niagara group, and 

 five from the Keokuk group... 254 

 Note upon the habits of some 



fossil aim el ids 260 



Nepticula grandisella 193 



maculosella 193 



Nothris bimaculella 184 



citrifoliella 184 



Nuculites yoldiaformis 24 



ODnoe hybromella 186 



Ormathichnus 222 



moniliformis.. 222 



Orthis sectostriata 15 



Orthodesma subovale 22 



Palaeaster crawfordsvillensis 250 



finei 19 



harrisi 117 



Petalichnus 221 



multipartitus 222 



Phyllocnistis arnpelopsiella 191 



Pisocrinusgemmiformis 113 



Planorbis duryi 99 



glabratus 97 



Platycrinus bloomfieldensis 257 



Pluteloptera 181 



ochrella 181 



Poteriocrinus wetherbyi 36 



Proceedings of the Society 1 



PAGE 



Pterinea mucronata '.. 24 



Pterotocrinus acutus 134 



bifurcatus 136 



spatulatus v, 137 



Reviews and Book Notices 68 



Ropalonaria 26 



venosa 26 



Stellipora limitaris 126 



Stephanoerinus osgoodeiisis 116 



Stone, Ormond — On th eextra-merid- 

 ian determination of time by 

 means of a portable transit in- 

 strument 211 



Strotocriniis bloomfieldensis 2.58 



Synbathocrinus granuliferus 250 



Tellinomya cingulata 23 



Teratichnus 221 



confertus 221 



Tinea tapetzella var. occidentella 193 



Trachoma tichn us 219 



cincinnatensis 220 



numerosus 219 



perraultus 220 



Trichophycus venosum 112 



Ulrich, E.O., descriptions of new gen- 

 era and species of fossils from 

 the lower silurian about Cin- 

 cinnati 8 



Description of a new genus and 

 some newspecies of bryozoans. 119 

 Description of a trilobite from 

 the Niagara group of Indiana.. 131 

 Wetherby, A. G., Remarks upon the 



genus Pterotocrinus 3 



Notes on some new or little 

 known North American Lim- 



naiida; 93 



Descriptions of new species of 

 crinoids from the Kaskaskia 

 group of tlie subcarboniferous. 134 



Note to former article 161 



Descriptions of new crinoids 

 from the Cincinnati group of 

 the lower siluriau, and the sub- 

 carboniferous of Kentucky 245 



Zygospira concentrica 14 



