262 The American Geoloijifit. April. 1895 
The DcronidH Si/Htcin of eastern, Peiuisylrftnid and Neir York. }>y 
Charles S. Phosseh. (null. U. S. Ocol. Siirv.. No. 120, pj). 1-81. 1894. 
clistributt'd 1895.) 
The aullior luus f^ivcii a very cari't'iil dctailt'd -study of the data d*;- 
rived from a large number of soclions and bt-aring upon the correlation 
of the Devonian formations of Pennsylvania with those of New York. 
The accounts of the various sections abound in interest inj,' details, and 
in the conclusions derived therefrom the author finds himself at vari- 
ance in several particulars with the determinations of the Pennsylvania 
geologists. The latter regarded a dark sandy shale lying at the top of 
the Hamilton as the Genesee shale; Prosser shows that it has little re- 
semblance lithologically and none in its fossils to the typical (Jenesee, 
which he holds to be ab.sent in these sections. The geologists of the 
Pennsylvania survey referred to the Tully limestone a light gray 
stratum, rich in Hamilton fossils, especially its corals, but with none of 
the species characteristic of the Tully. As the upper beds of the Ham- 
ilton shales in central and western New York abound in limestones, and 
as these limestones in Mt)nroe and Pike counties. Pa., are capped by a 
Hamilton shale, the inference is that they are not of the same age as 
strata referred to the Tully limestone in central Pennsylvania, whence 
typical Tully species have been reported. To the Lower Portage, Prof. 
Prosser refers 1,150 ft. of sandstone and shales regarded by I. C. White 
as Chemung. Overlying the.se is the Starucca .sandstone, regarded by 
AVhite as belonging to the upper Chemung and considered by Lesley as 
Catskill. Prossei- considers it probable that "beginning with the green- 
ish shales and sandstones of the Starucca and the New Milford red 
shales [considered by White as representing the base of the Catskill], 
there is a series of deposits efpiivalent to the Oneonta sandstone of New 
York, which, as is^ weH known, gradually i)asses into the beds" of typical 
Middle and I'pper Portage in central New York." 
The Delaware flags with Ortltoiiotn ? porruht Hall, and the Montro.sf 
shales with Spirifer meHOstriitlis in the upper part, are placed with the 
Chemung. J- m. c. 
Notes Paleontologiqu ex, TI, Criistdcex; Dearription de (pteliimx TrUnbites de 
rordovicieii d' Ecalf/rtn'n. IJy .T. Bekgekon. 
Under the name Cdlymene lennieri, the author dfscribfs an immense 
species of this genus ecpuiling in size the great forms cited by Hall and 
Oehlert from the lower Devonian. A new species of Truvieleits {T. gre- 
nieri) is also described. J. M. c. 
Ueber die xtratigniphisclii'ii Be-Avhuuijen der bUlnnixcheii Shtfen F, (!, If, 
Bitrratide'.s zitiu rheiiiixr/ien Deron. iiv E. Kavsek and E. Holzai'fel. 
(Jahrb. der k. k. geolog. Ileichsanst., 1894, vol. 44. pp. 479-514.) 
Since the full and final demolition by Kayser, of the alleged Silurian 
age of the F, and H stages in the so-called "Silurian basin" of Hohe- 
mia. an accomplished fact which has received substantial corroboration 
from correlative faunas and careful students of the Hevonian in various 
parts of the globe, there remained as "unfinished business" the deter- 
mination (if the precis(! e(|ni valence and position of these faunas in the 
