120 THE JOURNAL OF GEOLOGY. 



Clark, William B. 



— On Tertiary Deposits of the Cape Fear River Region. Pp. 537-540. — Bull. 

 Geol. Soc. Am., Vol. I. 



— A Revision of the Cretaceous Echinoidea of North America. 8 pp. — Johns 

 Hopkins University Circulars, No. 86. 



— The Discovery of Fossil-Bearing Cretaceous Strata in Anne Arundel and 

 Prince George Counties, Maryland. 6 pp. — Ibid., No. 69. 



— Third annual Geological Expedition in Southern Maryland and Virginia. 7 

 pp. — Ibid., No. 81. 



— Ueber die Geologischen Verhaltnisse der gegend Nordwestlich vom Achen- 

 See mit besonderer Beriicksichtigung der Bivalven und Gasteropoden des unteren 

 Lias. 46 pp., 2 pi., I map colored. 



— A New Ammonite, which throws additional light upon the Geological Posi- 

 tion of the Alpine Rhaetic. 4 pp. — Am. Jour. Sci., Feb., 1888. 



— On the Origin, Structure, and Sequence of Sedimentary Rocks. 45 pp. 

 — Geological Features of Gay Head, Mass. — Johns Hopkins University Circu- 

 lars, Dec, 1890. 



— Report of the Scientific Expedition in Southern Maryland. 3 pp. — Ibid., 

 June, 1 89 1. 



— Reports upon short Excursions made by the Geological Department of the 

 University during the autumn of 1891. 3 pp. — Ibid., Feb., 1892. 

 — Eocene of the United States. — Ibid., Feb., 1893. 

 — Mesozoic Echinodermata of the United States. — Ibid., Feb., 1893. 

 — Preliminary Report on the Cretaceous and Tertiary Formations of New Jer- 

 sey. Pp. 169-445. — Annual Report of New Jersey, 1893. 

 — Bibliographia Hopkinsiensis, 1876-93. Pp. 31-50. 



— Geology and Physical Features of Maryland. 67 pp., 16 pi., i Map colored. 

 — World's Fair Book on Maryland, 1893. 



—Surface Configuration of Maryland. Maryland State Weather Service, 

 Monthly Report for March, 1893. 4 pp. 



— Leading Features of Maryland Climate. 6 pp. — Ibid., May, 1893. 

 — Public Water Supply in Maryland. 2 pp. — Ibid., July, 1893. 

 — Correlation papers Eocene. 173 pp., 2 maps. — Bull. U.S.G.S., 1891, No. 83. 

 — The Mesozoic Echinodermata in the United States. 102 pp., 49 pL— Bull. 

 U.S.G.S., No. 97. 



— On Certain Aspects of Local Geology. — The Vermont Phoenix, May 20, 1892. 

 Claypole, E. W. 



— On Pteraspidian Fish in the Upper Silurian Rocks of North America. Pp. 

 47-64. — Quart. Jour. Geol. Soc, Feb., 1885. 

 Dall, W. H. 



—On some Fossil Unios and other fresh water shells from the drift at Toronto, 

 Canada, with a review of the Distribution of the Unionidas of Northeastern 

 North America (by Charles T. Simpson). Pp. 591-595.— Proc. U.S. Nat. Mus., 

 Vol. XVI., 1893. 

 Ells, R. W. 



—The Laurentian of the Ottawa District. Pp. 349-360.— Bull. Geol. Soc. Am., 

 Vol. IV., Aug., 1893. 



