--Quartzites and Siliceous Concretions. 10 pp.--Technology Quarterly, May, 1888. --Relations of the Pimite of the Boston Basin to the Felsite and Conglomerate. 14 pp.--Technology Quarterly, Feb. 1889. --The Madison Bowlder. 9 pp., 1 pl.--Appalachia, Vol. VI, No. 1. --On the Contrast in Color of the Soils of High and Low Latitudes. 10 pp. --Geology of the Outer Islands of Boston Harbor. 8 pp.--Proc. Boston Soc. Nat. Hist., 1888. --Physical History of the Boston Basin. 22 pp.--Lectures to Teachers’ School of Science, 1889–90. --The Kaolin in Blandford, Mass. 9 pp.--Technology Quarterly, Aug. 1890. --Composition of the Till or Boulder-Clay. 25 pp.--Proc. Boston Soc. Nat. Hist., Vol. XXV, 1890. --Geology of Hingham, Mass. 12 pp., 3 maps.--Proc. Boston Soc. Nat. Hist., Vol. XXV, May, 1892. --Geology of the Black Hills of Dakota. 29 pp.--Proc. Boston Soc. Nat. Hist., Vol. XXIII. CULVER, G. E. --On a Little Known Region of Northwestern Montana. 18 pp., 1 pl.--Wis. Acad. Sci., Arts and Letters, Dec. 1891. DARTON, N. H. --The Relations of the Traps of the Newark System in the New Jersey Region. 82 pp., 1 map, 4 pl.--Bull. U. S. G. S. --On Fossils in the Lafayette Formation in Virginia. 3 pp.--Am. Geol., March, 1892. DERBY, O. A. --On Nepheline Rocks in Brazil. 15 pp., Ill.--Quart. Jour. Geol. Soc., 1891. DOUGLAS, JAMES. --Biographical Sketch of Thomas Sterry Hunt. 11 pp.--Trans. Am. Inst. Min. Engin. EYERMAN, JOHN. --Notes on Geology and Mineralogy. 4 pp.--Proc. Acad. Nat. Sci., Phila., 1889. --The Mineralogy of Pennsylvania, Part I. 54 pp. --Bibliography of North American Vertebrate Paleontology for the year 1889. 4 pp.--Am. Geol., 1890. --Bibliography of North American Vertebrate Paleontology for the year 1890. 8 pp.--Am. Geol., 1891. --On the Mineralogy of the French Creek Mines in Pennsylvania. 4 pp.--N. Y. Acad. Sci., 1889. --A Catalogue of the Paleontological Publications of Joseph Leidy, M.D., LL.D. 10 pp.--Am. Geol., Nov. 1891. --Bibliography of North American Vertebrate Paleontology for the year 1891. 8 pp.--Am. Geol., April, 1892. FELIX, JOHANNES. --Untersuchungen ueber fossile Hölzer. 12 pp., 1 pl.--Abdruck a. d. Zeitschr. Deutschen geolog. Gesell., 1887. --Beiträge zur Kenntniss der Gattung Protosphyraena Leidy. 24 pp., 3 pl.--Aus der Zeitschr. Deutschen geolog. Gesell., 1890. --Ueber die tektonischen Verhältnisseder Republik Mexiko. 20 pp., 2 pl.--Aus der Zeitschr. Deutschen geolog. Gesell., 1892. FERRIER, W. F. --Rapport Géologique. Rapport des Opérations de 1866 à 1869. 530 pp., with maps. --Descriptive Sketch of the Physical Geography and Geology of the Dominion of Canada, by Alfred R. C. Selwyn and G. M. Dawson. 55 pp. 1884.