--Notes on Some Diabase Dykes of the Rainy Lake Region. 14 pp., Ill. --Notes on the Occurrence of Native Copper in the Animikie Rocks of Thunder Bay. 5 pp.--Am. Geol., March, 1890. --Notes on the Pre-Paleozoic Surface of the Archean Terranes of Canada. The Internal Relations and Taxonomy of the Archean of Central Canada. 32 pp.--Bull. Geol. Soc. Am., 1890. --Petrographical Differentiation of Certain Dykes of the Rainy Lake Region. LINDGREN, WALDEMAR. --Petrographical Notes from Baja, California, Mexico. 17 pp.--Proc. Cal. Acad. Sci., 2d Ser. II. (1889), 9 pp. Vol. III. (1890). --Eruptive Rocks from Montana. 18 pp.--Ibid., Vol. III. --The Silver Mines of Calico, California. 18 pp., 1 pl.--Trans. Am. Inst. Min. Engin. --The Gold Deposit at Pine Hill, California. 6 pp.--Am. Jour. Sci., Aug., 1892. --A Sodalite-Syenite and other Rocks from Montana; with Analysis, by W. H. Melville. 12 pp.--Ibid., April, 1893. --Contributions to the Mineralogy of the Pacific Coast, by W. H. Melville and W. Lindgren. 32 pp., 3 pl.--Bull. U. S. G. S., 1890, No. 61. LYMAN, BENJAMIN SMITH. --Shippen and Wetherill Tract. 36 pp., with map. MARTIN, F. W. --The Boulders of the Midland District. 22 pp., with map.--Proc. Birmingham Phil. Soc., Vol. VII., Part I. --First Report upon the Distribution of Boulders in South Shropshire and South Staffordshire. 25 pp.--Ibid., Vol. VI., Pt. I. MARSH, O. C. --Restoration of Claosaurus and Ceratosaurus. Restoration of Mastodon Americanus. 8 pp., 3 pl.--Am. Jour. Sci., Oct., 1892. --Restoration of Anchisaurus. 2 pp., 1 pl.--Ibid., Feb., 1893. MERRIMAN, MANSFIELD. --The Strength and Weathering Qualities of Roofing Slates. 19 pp., 3 pl.--Am. Soc. Civil Engin., Sept., 1892. MILL, HUGH ROBERT. --On the Physical Conditions of the Water in the Clyde Sea-Area. 25 pp., 1 pl.--Phil. Soc. Glasgow, 1887. --Configuration of the Clyde Sea-Area. 7 pp. 1 pl.--Scott. Geog. Mag., Jan., 1887. --Recent Physical Research in the North Sea. 14 pp. with map.--Ibid., Aug., 1887. --The Relations between Commerce and Geography. 13 pp.--Ibid., Dec., 1887. --Sea Temperatures on the Continental Shelf. 6 pp.--Ibid., Oct., 1888. --Scientific Earth-Knowledge as an Aid to Commerce. 18 pp.--Ibid., June, 1889. --Statical Oceanography--a Review. 7 pp.--Ibid., May, 1891. --The Principles of Geography. 7 pp.--Ibid., Feb., 1892. --On the Physical Conditions of the Water in the Firth of Forth. 6 pp., 4 pl.--Appendix to 5th Annual Report of the Fishery Board for Scotland. --Report of Physical Observations on the Sea to the West of Lewes, during July and August, 1887. 26 pp., 1 pl.--Ibid., 6th Annual.