Wahnschaffe, Felix.

—Bericht ueber den von der geologischen Gesellschaft in Lille veranstalteten Ausflug in das Quartärgebiet des nordlichen Frankreich und des Südlichen Belgien, 12 pp.—Jahrbuch der Königl. preuss. geolog. Landesanstalt für 1891.

Warring, C. B., Ph. D.

—Geological Climate in High Latitudes, 16 pp.—Popular Sci. Monthly, July, 1886.

Westgate, Lewis G.

—The Geographic Development of the Eastern Part of the Mississippi Drainage System, 16 pp. Am. Geol. April 1893.

Winchell, H. V.

—The Mesabi Iron Range in Minnesota, 72 pp., 5 pl.—20th annual Report. Minn. Geol. Survey, 1891.

Winchell, N. H.

—The Crystalline Rocks, Some Preliminary Considerations as to their Structures and Origin, 28 pp.—20th Annual Report, Minn. Geol. Survey, 1891.