Recent Publications. 281 
by the Kansan drift of northern Illinois, O. H. Hershey: The geology of 
of the San Francisco peninsula, H. W. Fairbanks. 
Jour, of Geol., Nov. -Dec. 1896. Age of the auriferous gravels of the 
Sierra Nevada, with a report on the flora of Independence hill, Walde- 
raar Lindgren: Anorthosites of the Rainy Lake region, A. P. Coleman: 
The Mechanics of glaciers, H. F. Reid; Loess in the Wisconsin drift 
formation, R. D. Salisbury; Geology of Chiapas, Tabasco and the pe- 
ninsula of Yucatan, Carlos Sapper; Studies for students (Stratified 
drift), R. D. Salisbury. 
Auier. Naturalist, Jan. Fossils and fossilization, L. P. Gratacap. 
Science, Feb. 19. Lieutenant Peary's expedition, G. H. Barton. 
Science, Feb. 26. Earth crust movements and their causes, Joseph 
Le Conte; The sand-plains of Truro, Wellfleet and Eastham, A. W. 
Grabau: Current notes on physiography, W. M. Davis; Former exten- 
sion of Greenland glaciers, R. S. Tarr. 
Science. March 5. Vertebrates from the Kansas Permian, S. W. 
Williston: Former extension of Greenland glaciers. T. C Chamberlin. 
Amer. Jour. Sci., March. Crater lake, Oregon, J. S. Diller: Origin 
and relations of the Greenville and Hastings series in the Canadian 
Laurentian, F. D. Adams, A. E. Barlow and R. W. Ells; Outline of a 
natural classification of the trilobites,C. E. Beecher: Scoured boulders 
of theMattawa valley, F. B. Taylor; Arctic sea ice as ageological agent, 
R. S. Tarr; Contribution to the geology of Newport neck and Conani- 
cut island, W. O. Crosby. 
Nat. Geog. Mag., Feb. Crater Lake, Oregon, J. S. Diller. 
IV. Excerpts and Individual PuhlicationH. 
The Geology of the Fox islands, Maine A contribution to the study 
of the old volcanics. By G. O. Smith. 76 pp., 2 pis.; published by the 
author, Skowhegan, Me., 1896. 
Tables for the determination of minerals by physical properties ascer- 
tainaljle with the aid of a few field instruments, based on the system of 
Prof. Dr. Albin Weisbach. By Persifor Frazer. xii and 163 pp.; Phil- 
adelphia. J. B. Lippincott Co., 1897. 
Notes on the occurrence of a rich silver and gold mineral containing 
tellurium, in the Griffith lode, near Geoi-getown, Clear Creek county, 
Colorado, Richard Pearce. Proc. Colo. Sci. Soc, 2 pp., read Oct. 5, 1896. 
Notes on the occurrence of tellurium in an oxidized form in Montana, 
Richard Pearce. Proc. Colo. Sci. Soc, 2 pp., read Nov. 2, 1866. 
The production of precious stones in 1895, G. F. Kunz. U. S. Geol. 
Survey, 17th Ann. Rept., pt 3, pp. 895-926, 1890. 
Additional notes on fossil sponges and other organic remains from 
the Quebec group at Little Metis, on the lower St. Lawrence, J. W. 
Dawson. With notes on some of the specimens, G. J. Hinde. Trans. 
Roy. Soc Canada, 2d ser., vol. 2, sec 4, pp. 91-121, pis. 1-i. 1896. 
Report of the director for the fiscal year ending June 30, 1896, C. D. 
Walcott. U. S. Geol. Survey, 17th Ann. Rept. pp. 1-200. 1 map, 189(5. 
Thomas Tracy Bouve, memorial meeting. Boston Soc. Nat. Hist., 
vol. 27, pp. 219 241, Dec, 1896. 
Elementary geologv, R. S. Tarr. ix and 499 pp., 25 pis.; Macmillan 
Co., New York, 1897. 
