Review of Recent Geological Literature. 323 
REVIEW OF RECENT GEOLOGICAL 
LITERATURE. 
The Report of the [New York] State Paleontologist for the year 1902. 
(Bulletin No. 69, N. Y. State Museum, Albany, 1903.) 
This document contains, besides the administrative report by the 
State Paleontologist (p. 852-889), a considerable number of original 
contributions on the New York formations and their fossil contents. 
These are: 
1. The Dwarf Fauna of the Pyrite Layer at the Horizon of the 
Tully limestone in western New York, by F. B. Loomis (p. 890-920, 
5 plates)., describing a peculiar stunted Hamilton fauna. 
2. Mastodons of New York, a list of Discoveries of their Remains, 
1705-1902, compiled by J. M. Clarke (p. 921-933, 2 plates). 
3. The Cambric Dictyonema Fauna in the Slate Belt of Eastern 
New York, by R. Ruedemann (p. 934-958, 3 plates), in which the dis- 
covery in eastern New York ' of a graptolite horizon characterized by 
Dictyonema flabelliforme, and forming the closing stage of the Upper 
Cambric in northern Europe and Nova Scotia, is announced. 
4. On the Sedimentary Impression of the Animal whose Trail is 
known as Climactichnites, by Jay B. Wot)dworth, (p. 959-966, 2 plates). 
In this paper are described some gigantic tracks with terminal impres- 
sions, supposedly of a large mollusk, which have recently become 
known from the Potsdam sandstone of northern New York. 
5. Devonic and Carbonic Formations of Southwestern New York, 
by L. C. Glenn (p. 967-989, with stratigraphic map of the Olean quad- 
rangle. This paper is supplemented by a paleontologic contribution on 
Fossil Faunas of the Olean quadrangle by Charles Butts (p. 990 995). 
6. The fact that the above cited papers give different interpretations 
of the Olean section on account of the different modes employed, has 
led to a discussion of the principles involved by the State Paleontolo- 
gist in the next succeeding paper, entitled Contribution on the Olean 
Rock section (p. 996-999). 
7. The Stratigraphy of the Portage Formation between the Genesee 
Valley and Lake Erie is the title of a paper by D. D. Luther (p. 1000- 
1029, 1 map), giving much new information on the Upper Devonic 
shales of western New York. 
8. The Stratigraphy of Becraft Mountain, Columbia county, N. Y., 
by A. W. Grabau (p. 1030-1079. with stratigraphic map and sections). 
A contribution describing in great detail that interesting Devonic out- 
lier, its constituent formations and included faunas and especially its 
much faulted structure. 
9. A new Eurypterid Fauna from the Base of the Salina of Western 
New York, by Clifton J. Sarle (p. 1080-1108, 21 plates), contains the 
description of some new and most interesting eurypterids from the basal 
black Salina shales in the vicinity of Rochester, one of them represent- 
ing a new genus, Hughmileria, the remaining being new species <>t' Eu- 
