602 Progress of Invertebrate Paleontology in the U. S., ete. (June, 
viously described in the Geological Survey of Illinois, under 
names that were preoccupied ; and descriptions of two new spe- 
cies of fossil shells from the coal measures of Illinois and Kan- 
sas.” All these species described and discussed by Messrs. Wor- 
then and Wachsmuth are to be illustrated in the forthcoming 
seventh§volume of the Illinois Geological Survey. 
No. 3, Volume 1, of the Bulletin of the American Museum of 
Natural History of New York, has been published, containing 
sixty-one pages of text and four plates. It is wholly devoted to an 
important work by Professor R. P. Whitfield, “ On the fauna of the 
Lower Carboniferous limestones of Spergen Hill, Indiana, witha 
revision of the descriptions of its fossils hitherto published, and 
illustrations of the species from the original type series.” Pro- 
fessor Whitfield proposes three molluscan genera, namely, Lepe- 
topsis, Bulimorpha and- Eotrochus. The greater part of these 
‘species were published without illustrations by Professor Hall in 
1856, in the Transactions of the Albany Institute, and have be- 
come widely known under the designation “ Spergen Hill fossils. 
In the March number of Annals of the N. Y. Academy of 
Sciences, pp. 193-244, he published “ Descriptions of new Sp 
cies of fossils from Ohio, with remarks on some of the geological 
formations in which they occur.” This is a preliminary publica- 
tion of matter that is to appear in a forthcoming volume of the 
Ohio Geological Survey, Forty-seven new species are described 
and one new Cephalopod genus (Zrematoceras) proposed. The 
formations from which the fossils come, are of Devonian and 
Lower Carboniferous age. 
uae a 
In the Proceedings of the Academy of Natural Sciences” 
Philadelphia for 1882, pp. 17-34 and Plate 1, Professor Henry ai 
Williams published “ New Crinoids from the rocks of the on 
mung period of New York.” He has also published ego 
Cornell University press, Ithaca, N. Y., a “ Catalogue of the 
sils of the Chemung period of North America,” pp. 14 oye) fe 
During 1882 I have made four palaontological pek 
follows: “ Conditions attending the geological descent of s 
fresh-water gill-bearing Mollusks,” American Fournal of S0; 
for May, pp. 382-386; “New molluscan forms from the Ar ms 
and Green River groups, with discussion of some associated 
heretofore known,” Proceedings of the U. S. National j 
Vol. v, pp. 94-99, Plates 1 and 1v; “ Molluscan faunā 
Museum, 
