640 . BOOKS RECEIVED. 
and Western New York, while up to this time no positive determination 
has been made regarding the Sandstone of Montrose. The latter may be 
the equivalent of the Red Sandstone of Tioga a sun of the summits of the 
Catskill, but we have not yet the facts necessary for the d — 
Will you have the kindness to make some note of correction in the nex 
number of the NATURALIST. Yours, etc. — JAMES HALL. 
The following papers were also read before the Association : — 
PAPERS READ IN SECTION B. — NATURAL HISTORY. 
Notes on Granitic Rocks. By T. St fie Hun 
On the Oil-Bearing Limestone of Chicago. T. St. rry Hun 
On the Lignites of West America, their te ae and geret Value. By J. S. 
'ewberry. 
On the character of the TT necessary to interpret the record of the last 
Glacial Period. haler 
rnit Circuits of Generation : Zymotic Fungi: 6. Of the (nominal) 
Genera of Fresh water Alge, as Pisa Peli iom of Bryacem, etc, c. Of Vorticel- 
kcPlamrinm. By T. C. Hilgard. 
nee recep T sree Arietes. By Alpheus Hyatt. 
e iron, "not — oriec. E. M A ad 
On the salt deposit of pede stern Ont. y T. Sterry Hun 
On the Relation of Organic Life ed e ek coded rs the Physical Character 
hal 
The oe. and ‘Old Age of the Tetrabranchiate Cephalopods. By A. Hyatt. 
On a method of collecting cer t Geological facts, adopted by the ' Social Science 
Pis schon ” By N.S. Shaler 
On the eras and Chronology of the Drift Phenomena in the Mississippi Valley 
By J. S. Newber 
BOOKS RECEIVED. 
Archie fur pepers al M pria vol. iv. Heft, 1, 2, 1870. 4to. 
zology of Peru, By E,G@. Squier. London, 1870. 8vo. 
Feuille edens ure die ei 5, May to August, 1870. Dornach, Haut-Rhin. 
($1.00 arta rer) Me 
Report on 
s thee 2 ao "Long Island, N, Y., and of tts Dependencies. By Sanderson Smith 
und abc ru me. ork. 8vo, pp. 30, 
u ^ 
8vo. 
a Ireland, 1870. 8Y0, 
m 12, 25. peers Addres. Dr. Wi Thompson, November 10,1869, Belfast. Treland. 40. 
geni 
Phil bi 
rnal of Microscopy. Vol. i, No.1. Chicago, Movember js ng "published 
mber, 1870, 
teal Club. Vol. i, No. 10. October, 1870. 
eee Ai 
emist 
Minerals of Colorado, By J. Alden — Contial Pagi eei 8vo, pp. 16. 
Journal of Popular Science. oo 
of t 
Collections of the Minnesota Historic Seti. Vol M. ei T St. Paul, 1870. 8vo, 
