Recent Publications. ■''■>> 
morphiem of a gabbro occurring in St. Lawrence county, N. \., C H. 
Smyth, Jr.; Notes on Glacial gravels in the lower Susquehanna valley, 
H. B. Bashore : The Bearpaw mountains, Montana, W. H. Weed and 
L. V. Pirsson : Pleistocene marine shore lines on the south side of the 
St. Lawrence valley, Robert Chalmers ; Occurrence of free gold in 
granite. G. P. Merrill. 
Amev. Nat., April. The history and principles of geology and its aim. 
J. C. Hartzell, Jr.; Life before fossils, Charles Morris. The Paleozoic 
reptilian order Cotylosauria, E. D. Cope : Notes on the fossil Mammalia 
of Europe Pt. n — On the affinities of the genus Tapirulus, Charles 
Earle. 
Science, Mch. 27. Current notes on physiography, W. M. Davis ; 
The Philadelphia brick clays, R. D. Salisbury. 
Science, Apr. 3. Expedition to Seriland, W J McGea ; The temper- 
ature of the earth's crust, Ellen Hayes; The prerogatives of a state 
geologist, Erasmus Ha worth. 
Science, Apr. 10. Naval erosion, G. W. Tower. 
The Mining Bulletin, Mch. An estimate of geological time, W. A. 
Buckhout ; Official geology, H. H. Stoek. 
I\~. Excerpts and Individual Publications. 
The fauna of the Magnesian series (Description of fossils), F. W. 
Sardeson. Bull. Minnesota Acad. Nat. Sci., vol. 4, no. 1, pp. 92-105, pis. 
5-6, 1896. 
Ueber das Carbon des Mississippithales, C. R. Keyes. N. Jahrb. f. 
Mineralogie, etc., Bd. 1, pp. 96-110, 1896. 
The Permian system in Kansas, F. W. Cragin. Colo. College Studies, 
vol. 0, pp. 1—48, Mch., 1896. 
On the stratigraphy of the Platte series, or upper Cretaceous of the 
plains, F. W. Cragin. Ibid., pp. 19-52. 
Preliminary notice of three late Neocene terranes of Kansas, F. W. 
Cragin. Ibid., pp. 53-54. 
The nickel deposits near Riddle's, Oregon, W. L. Austin. Head before 
the Colo. Sci. Soc, Jan. 6, 1896 ; 27 pp. 
Economic geology of the Mercur mining district, Utah, J. E. Spurr, 
with introduction by S. F. Emmons. U. S. Geol. Sur., 16th Ann. Rept., 
pt. 2, pp. 343-455. pis. 25 :54, 1895. 
Petrographical characters of some rocks from the area of the Klain 
loops map-sheet, British Columbia, W. F. Ferrier. Geol. Sur. Canada. 
Ann. Rept., vol. 7, pp. 349B tOOB, 1896. 
Greenland ice fields and life in the north Atlantic with a new discus 
sion of the causes of the be age, <i. F. Wrighl and Warren Upham. 
xv and 407 pp., cuts and maps : I ). Applet on and Co.. New York, 1896. 
Sur la meteorite tomb^e le 9 avril 1894 pres de Fisher (Minnesota), 
N. H. Winchell. Comptes Rendus, t. 122. no. LI, 3 pp.. Mrh. K;. ism;. 
I'. Proceedings of Scientific Laboratories,. etc. 
Bull. Dept. of Geol. Univ. of Cal., vol. 1, do. 13, pp. 363-370, Mch., 
L896. Sigmogomphus le contei, a new castdroid rodenl from the 1'lio 
cene. near Berkeley, Cal.. .1. C. Merriam. 
