773 Winchell (Newton H.). Common zeolites of the Minnesota shore of Lake Superior.

Am. Geol., vol. xxiii, pp. 176-177, 1899.

Describes the characters of stilbite, heulandite, laumontite, and mesotype.

The optical characters of jacksonite.

Am. Geol., vol. xxiii, pp. 250-251, 1899.

Describes the microscopic and chemical character of the material.

[Review of "Rivers of North America; a reading lesson for students of geography and geology," by Israel C. Russell.] Am. Geol., vol. xxiii, pp. 261-262, 1899.

Adularia and other secondary minerals of the copper-bearing rocks.

Am. Geol., vol. xxiii, pp. 317-318, 1899.

Describes crystallography and chemical characters of adularia and wollastonite.

[Review of "Report on the boundary between the Potsdam
and pre-Cambrian rocks north of the Adirondacks" and
"Augite-syenite gneiss near Loon Lake, New York."]
Am. Geol., vol. xxiii, p. 330, 1899.

[Review of "The characters of crystals: an introduction to
physical crystallography," by Alfred J. Moses.]

Am. Geol., vol. xxiii, p. 389 (4 p.), 1899.

[Review of "Minerals in rock sections; the practical methods of identifying minerals in rock sections with the microscope; especially arranged for students in technical and scientific schools," by L. M. Luquer.]

Am. Geol., vol. xxiv, pp. 120-121, 1899.

780 Winchell (H. V.) and Grant (U. S.). Preliminary report on the Rainy Lake gold region. [Minnesota.]

Minn. Geol. and Nat. Hist. Surv., Final Rept., vol. iv, pp. 192-211, pls. N-O, 1899.

Describes the character and occurrence of the Archean rocks and glacial deposits and the occurrence of gold ores in the region.

781 Witter (F. M.). Observations on the geology of Steamboat Springs, Colorado.

Iowa Acad. Sci., Proc., vol. vi, pp. 93-98, 1899.

Describes the general geologic features of the region.

782 Wolff (John E.). On hardystonite, a new calcium zinc silicate from Franklin Furnace, New Jersey.

Am. Acad. Arts and Sci., Proc., vol. xxxiv, pp. 479-481, 1899. Review: Am. Geol., vol. xxiii, p. 329 (4 p.), 1899.

Describes its chemical and physical characters.

783 Wolff (John E.). Hardystonite, a new mineral from Franklin Furnace [New Jersey].

Abstract: Science, new ser., vol. ix, p. 519 (10 1.), 1899.

784 Woodman (J. Edmund). Studies in the gold-bearing slates of Nova Scotia.

785

786

Bost. Soc. Nat. Hist., Proc., vol. xxviii, pp. 375-407, 3 pls., 1 fig., 1899. Discusses the structure, character, and age of the slates. Includes a bibliography of publications on the region.

Shore development in the Bras d'Or lakes.

Am. Geol., vol. xxiv, pp. 329–342, pl. xvi, 1899.

Describes the forelands and discusses their classification.

Ore-bearing schists of middle and northern Cape Breton. Rept., Dept. of Mines, Nova Scotia, for the year ending Sept. 30, 1898, 39 pp., 1899. (Not seen.)

787 Woodward (Henry), Jones (T. Rupert) and. Contributions to fossil Crustacea.

See Jones (T. R.) and Woodward (H.), No. 366.

788 Woodworth (J. B.). The ice contact in the classification of glacial deposits.

789

790

791

792

Am. Geol., vol. xxiii, pp. 80-86, 1899.

Describes the phenomena associated with the ice contact, and discusses its bearing in the classification of glacial deposits.

Some glacial wash-plains of southern New England.

Essex Inst., Bull., vol. xxix, pp. 71-119, 7 figs., 1897. Review: Am., Geol., vol. xxiv, pp. 381-382, 1899.

Describes character and distribution.

Curtis (G. C.) and. Nantucket, a morainal island.
See Curtis (G. C.) and Woodworth (J. B.), No. 131.

Shaler (N. S.), Foerste (A. F.) and. Geology of the Narra-
gansett Basin.

See Shaler (N. S.), Woodworth (J. B.), and Foerste (A. F.), No. 582.

Geology of the Richmond Basin, Virginia.

See Shaler (N. S.) and Woodworth (J. B.), No. 581.

793 Woods (H.). Notes on the genus Grammatodon Meek and Hayden.

Annals and Mag. of Nat. Hist., 7th ser., vol. iii, pp. 47-48, 1899.

794 Woolman (Lewis). Artesian wells in New Jersey.

N. J. Geol. Surv., Rept. for 1898, pp. 59-144, pls. iii-iv, 1899.
Gives data of artesian wells in New Jersey.

795 Wortman (J. L.). Othniel Charles Marsh.
Science, new ser., vol. ix, pp. 561-565, 1899.
Gives a sketch of his life and publications.

796 Wright (G. Frederick). The truth about the Nampa figurine. Am. Geol., vol. xxiii, pp. 267-272, 1899.

797

798

Contains some notes on the basalt flows of Idaho.

New methods of estimating the age of Niagara Falls.
Pop. Sci. Mo., vol. lv, pp. 145-154, 6 figs., 1899.
Lateral erosion at the mouth of the Niagara Gorge.
Abstract: Science, new ser., vol. x, p. 488 (11 1.), 1899.

799 Yeates (W. S.). Bibliography [Clay and its manufacture].
Ga. Geol. Surv., Bull. No. 6A, Appendix, pp. 193-199, 1898.

Includes a bibliography adapted to Bull. No. 6A of the Georgia Geological Survey.