Author's Catalogue. 59 
The publication indicates great activitj'- and energy on the part of 
Dr. Herrick, who has produced this and the preceding bulletin in ad- 
dition to his duties as president of the Territorial University. Such 
a publication must be one of much convenience and value to the people 
of the territory. x. h. \v. 
The Geology of Eastern Berkshire County, Massachusetts, B. K. 
Emerson. (Bull. 159, U. S. G. S.) 
This bulletin is supplementary to the Housatonic folio, and treats 
of the area adjoining the Green mountain and Hoosac mountain re- 
gions, which have been the subjects of recent monographs.* The bul- 
letin consists principally of Hthological and petrographical descriptions. 
The region described represents the central portion of a deeply 
eroded mountain region. It presents a complicated series of much 
folded and faulted pre-Cambrian and early Paleozoic rocks. Mr. Emer- 
son distinguishes and describes six gneisses, three limestones, three 
schists and one quartzyte. He concludes with a lexicon of Berkshire 
county minerals. 
The bulletin is somewhat fragmentary. It does not give a complete 
history of the region nor discuss any of the larger problems involved. 
Doubtless the Housatonic folio will treat of this side of the subject 
and as an appendix to the folio the bulletin \n\\ be of value, i. h. 0. 
MONTHLY AUTHOR'S CATALOGUE 
OF AMERICAN GEOLOGICAL LITERATURE 
ARRANGED ALPHABETICALLY. 
Bather, F. A. 
Pores in the Ventral sac of Fistulate Crinoids. (Am. Geol.. vol. 
26, pp. 307-312, Nov., 1900.) 
Bennett, L. F. 
Notes on the eastern escarpment of the Knobstone formation in 
Indiana. (Proc. Ind. Acad. Sci., 1898. pp. 283-288, Indianapolis, 189*^.) 
Bennett, L. F. 
Headwaters of Salt creek, in Porter county. (Proc. Ind. Acad. 
Sci., i8y9, pp. 164-166, Indianapolis, 1900.) 
Clarke, J. M. 
Report of the state paleontologist (New York). i8()9. (,53rd Rtp. 
N. Y. State Mus., pp. 659-816. Albany, 1900.) 
Clarke, J. M. 
A remarkable occurrence of Orthoceras in the Oneota beds of the 
Chenango valley, N. Y. (Bull, No. 39, vol. 8, N. Y. talc Mus., pp. 167- 
170, plates 1-4, Oct., 1900.) 
Mod 
*Geoloffij of the Green Mts. in Massachuaetta, by Pumpellv. Wolff, Dale. 
3. U. S. G. S. XXII. 
