J. A. B.
FOOTNOTE
[61] Abstracts in this number are prepared by F. H. Knowlton, Henry B. Kummel, J. A. Bownocker.
ACKNOWLEDGMENTS.
The following papers have been donated to the library of the Geological Department of the University of Chicago:
Abbott, Charles C., M.D.
—Recent Archæological Explorations in the Valley of the Delaware. 30 pp., 1 pl.—Publications of the University of Pennsylvania. Series in Philology, Literature and Archæology, Vol. II, No. 1.
Adams, Frank D.
—On Some Granites from British Columbia and the Adjacent Parts of Alaska and the Yukon District. 14 pp., Ill.—Canadian Record of Science, Sept. 1891.
—Notes to Accompany a Tabulation of the Igneous Rocks based on the System of Professor H. Rosenbusch. 6 pp., 1 pl.—Canadian Record of Science, Dec. 1891.
—On the Geology of the St. Clair Tunnel. 8 pp., 1 pl.—Trans. Roy. Soc. Canada, Section IV, 1891.
—On the Presence of Chlorine in Scapolites. 5 pp.—Am. Jour. Science, Apr. 1879.
—Notes on the Lithological Character of some of the Rocks Collected in the Yukon District and Adjacent Northern Portion of British Columbia. 6 pp.—Annual Report, Geol. Sur. of Canada, 1887.
—On Some Canadian Rocks Containing Scapolite, with a Few Notes on Some Rocks Associated with the Apatite Deposits. 16 pp.—Canadian Record of Science, Oct. 1888.
—On the Microscopical Character of the Ore of the Treadwell Mines, Alaska. 5 pp., Ill.—Read before the Royal Soc. Canada, May, 1889.
—On a Melilite-Bearing Rock (Alnoite) from Ste. Anne de Bellevue, near Montreal, Canada. 10 pp., Ill.—Am. Jour. Sci., Vol. XLIII, Apr. 1892.