149 
Laurel River, Whitley County, Kentucky, by Mr. A. G. 
Wetherby. 
The species, with one exception (Geomalacus), belong to 
the American fauna. 
The author, impressed with a sense of the value of such 
anatomical details as are afforded in his paper, as aids to 
classification, takes the opportunity of strongly urging upon 
conchologists the study of the genital system, as a most 
reliable specific character in the Terrestrial Pulmonata. 
The deferred paper of Mr. I. C. Wurrs, on the Upper 
Coal Measures of West Virginia and Pennsylvania, was read 
in the absence of its author, by Prof. J. J. Stevenson. (Pub- 
lished in the Annals, Vol. XI, No. 2). 
The region covered by Mr. White’s observations includes 
portions of Monongalia, Marion, Marshall, and Ohio Counties, 
in West Virginia, and Greene County, Pennsylvania. The 
section extends from the Monongahela river, near Morgantown, 
W. Va., to the Ohio river, at Wheeling. The part of the 
coal-measures chiefly discussed, is that known as the Upper 
Barren Group. 
The extended observations of the author of this paper are 
very minutely and carefully recorded. Among the numerous 
points developed, perhaps that of most interest is the entire 
absence, so far as particular search could reveal, of any indi- 
cation of Permian affinities in either the fauna or flora, even 
where the upper coal rocks present their fullest developement 
at the highest horizon. Prof. H. D. Rogers had suggested 
the possible occurrence of such types in this region, as a mat- 
ter for investigation; but none have yet been obtained. 
THE PRESIDENT welcomed the paper warmly as one of 
high value, covering a district and a horizon ‘of which little 
was previously known. specially interesting is the deter- 
mination concerning the non-appearance of any Permian 
types of fossils. 
THE PRESIDENT gave an account of a second species of 
Dinichthys recently discovered in Ohio, which he names D. 
