420 The American Geolocjisl . June, 1897 
Ibid., pp. 287-304, Moh. 31. Age of the lower coals of Henry county, 
Missouri, David White. 
Proc. Calif. Acad. Sci., 2d eer., vol. 6, Mch. 1, 1897. Notes on Palaeozoic 
Crustacea, No. 5, — Carboniferous trilobites from Missouri, A. W. Vog- 
des; On some new Cretaceous (and Eocene?) Mollusca of California, 
J. G. Cooper. 
Proc. Lake Superior Mining Inst., 1896, vol. 4. The occurrence of 
copper minerals in hematite ore, Montana mine, Soudan, Minn., J. H. 
Eby andC. P. Berkey 
Journ. Elisha Mitchell Sci. Soc, 1896, pt. 1, 1897. River adjust- 
ments in North Carolina, W. J. Weaver. 
Proc. Acad. Nat. Sci., Phila., 1897, pt. 1. The affinities of Floridian 
Miocene land snails. H. A. Pilsbry; The primeval ocean, Chaa. Morris. 
III. Papers in Scientifix; Journals. 
Amer. Nat., Mch. Fossils and fossilization, L. P. Gratacap. 
Ibid., April. Fossils and fossilization, L. P. Gratacap. 
Ibid., May. The seventh session of the International Geological 
Congress, Persifor Frazer; In memoriam E. D. Cope, Persifor Frazer; 
Obituary notice of E. D. Cope, J. S. Kingsley. 
Science, Mch. 12. Prof. Fontaine and Dr. Newberry on the age of 
the Potomac formation, L. F. Ward; Current notes on physiography, 
W. M. Davis; Greenland glaciers, E. H. Williams, Jr. 
Ibid., March 19. Gibbers, J. B. Woodworth. 
Ibid., Mch. 26. Current notes on physiography, W. M. Davis; The 
former extension of ice in Greenland, R. S. Tarr, T. C. Chamberlin. 
Ibid., Apr. 2. The drainage of the Saginaw valley, A. C. Lane. 
Ibid., Apr. 9. The origin of the teeth of the mammalia, H. F. Os- 
born; Current notes on physiography, W. M. Davis; Archaeological dis- 
coveries made in the gravels at Trenton, G. F. Wright. 
Ibid., April 16. The great fault and accompanying sandstone dikes 
of Ute pass, Colorado, W. O. Crosby; The Ganodonta or primitive eden- 
tates with enamelled teeth, H. F. O. 
Ibid., April 23. Current notes on physiography, W. M. Davis: The 
coming ice age, C. A. M. Taber. 
Ibid., April 30. The Quaternary of Missouri, J. E. Todd; A "drift- 
less" ridge, O. H. Hershey. 
Ibid., May 7. E. D. Cope, H. F. Osborn: Pareiasauria Seeley (Coty- 
losauria Cope) from the Triassic of Germany, G. Baur; Current notes on 
physiography, W. M. Davis. 
Ottawa Nat., Feb. Recent explorations in Canada: Introductory 
sketch, G. M. Dawson; The barran lands, J. B. Tyrrell; The Labrador 
area, A. P. Low. 
School of Mines Quarterly, Jan. Subterranean temperatures at 
Wheeling, W. Va., and Pittsburg, Pa., W. Hallock. 
Scientific Amer,, Apr. 3. The glaciers of Greenland, R. S. Tarr. 
Amer. Jour. Sci., Apr. Acid dykes in the Connecticut Triassic 
area, E. O. Hovey; Granitic rocks of the Pyramid Peak district, Sierra 
