CAPE COD GEOLOGY 



197 



1841. . Final report on the geology of Massachusetts; Vol. 1 contains economi- 

 cal geology, scenographical geology, pp. i-xii, 1-299, map, Amherst; Vol. 2 contains 

 scientific geology, elementary geology, pp. 301-831, ills., map, Northampton. 



Includes a section and a stratigraphic description of the cliffs. Regards the beds of 

 clay as Eocene, the age of the clays of the London Basin. 



1843. Lyell, Sir Charles. On the Tertiary strata of the island of Marthas Vineyard in 

 Massachusetts: Proc. Geol. Soc. London, 4, pp. 31-33; Philos. Mag., 3d ser., 23, pp. 

 187-189; Geologist, pp. 160-163; Am. Jour. Sci., 46, pp. 318-320 (1844). 



1845. . Travels in North America in the years 1841-43, with geological obser- 

 vations on the United States, Canada, and Nova Scotia, 1, pp. 203-207, New York. 

 Regards the Gay Head series of deposits as Miocene Tertiary, because of the fossils 

 that he found there. These fossils include the skull of a walrus, teeth of shark, a tooth 

 of a seal, vertebrae of Cetacea, remains of crustaceans, and casts of Tellina and Mya. 



1849. Desor, Edouard, and Cabot, E. C. On the Tertiary and more recent deposits in the 

 island of Nantucket: Quart. Jour. Geol. Soc. London, 5, pp. 340-344. 



Correlates the clays at the base of Sankaty Head, Nantucket, with those at Gay 

 Head. 



1852. Desor, Edouard. Post-Pliocene of the Southern States and its relation to the Lauren- 

 tian of the North and the deposits of the valley of the Mississippi: Am. Jour. Sci., 2d 

 ser., 14, pp. 49-59. 



Rejects the glacial hypothesis to explain scattered boulders on the surface of 

 Marthas Vineyard, Long Island, and Nantucket, and attributes them to ice rafts. 



1854. Whiting, H. L. Paper in report of the Superintendent of the Coast Survey for 1853, 

 p. 30, Washington. 



Estimates the rate of recession of the Nashaquitsa cliffs. 



1863. Stimpson, William. On the fossil crab of Gay Head: Boston Jour. Nat. Hist., 7, 

 pp. 583-589. 



1870. Leidy, Joseph. [On Graphidon vinearius from Marthas Vineyard, Mass., and on Cro- 



codilus elliotti]: Proc. Acad. Nat. Sci. Philadelphia, 1870, pp. 113-114. 



1871. Hitchcock, C. H. Geological description [and geologic map] of Massachusetts. In 



Walling & Gray, Official topographical atlas of Massachusetts, pp. 18-19, Boston. 

 The map shows the western area of Marthas Vineyard as Miocene and the rest 

 of the island as drift and alluvium. Describes the clays, lignite, and fossils of Gay 

 Head. 



1872. Mitchell, Henry. Report on physical surveys made at Marthas Vineyard and Nan- 



tucket during the summer of 1871 : U. S. Coast Survey Rept. for 1869, pp. 254-259. 

 Considers shore-line changes south of Chappaquiddick Island. 

 1872. Shaler, N. S. In Proc. Boston Soc. Nat. Hist., vol. 15, p. 219. 



Gives evidence of recent depression along the coast of Marthas Vineyard. 



1875. Dana, J. D. Manual of geology, etc., 2d ed., pp. 494-495. 



Contains statement that Marthas Vineyard consists almost entirely of Miocene 

 deposits. 

 1376. Blake, W. P. Notes on the occurrence of siderite at Gay Head, Mass.: Trans. Am. 

 Inst. Min. Eng., 4, pp. 112-113. 



1876. Crosby, W. O. Report on the geological map of Massachusetts (Massachusetts Com- 



mission to the Centennial Exposition), 42 pp. 

 The map shows that the west end of the island is Miocene. 



1878. Hall, James. [Observations on the geological structure of Marthas Vineyard and 



adjacent islands, Mass.] : Proc. Albany Inst., 2, pp. 148-149. 



1879. Upham, Warren. Terminal moraines of the North American ice sheet: Am. Jour. Sci., 



3d ser., 18, pp. 81-92, pp. 197-209. 



