436 LIFE OF THE PLEISTOCENE 



Shaw, James. 



1873. Geology of Ogle County. Geol. Illinois, V, p. 1 10. 



1873a. Geology of Lee County and Whiteside County. Geol. Illinois, V, pp. 130, 145. 

 Sheldon, Pearl. 



1915. Mastodon Tusk in Glacial Gravels. Science, N. 5., XLI, pp. 98-99. 

 Shelford, Victor E. 



1911. Ecological Succession, II. Pond Fishes. Biol. Bull., XXI, pp. 127-151. 



1913. Animal Communities in Temperate America as Illustrated in the Chicago Re- 

 gion; A Study in Animal Ecology. Bull. Chicago Geog. Soc, No. 5, pp. i-xiii, 

 1-362. 

 Shepard, Charles U. 



1838. Geology of Upper Illinois. Amer. Journ. Sci., (i), XXXIV, pp. 134-161. 

 Sherman, Paul. 



1873. Glacial Fossils in Maine. Amer. Nat., VII, pp. 373-374. 

 Sherzer, W. H. 



1900. Geological Report on Monroe County, Michigan. Geol. Surv. Mich., VII, part 

 I, pp. 1-240. 



Shimek, B. 



1888. Notes on the Fossils of the Loess at Iowa City, Iowa. Amer. Geol., I, pp. 149-152. 

 1888a. The Mollusca of Eastern Iowa, Bull. Lab. Nat. Hist. State Univ. Iowa, 1, No. 



l,p.56. 

 1890. The Loess and It's Fossils. Op. tit., 1, pp. 200-214; II, pp. 89-98. 

 1892. Pyrgulopsis scalariformis (Wolf) Call and Pisbry. Op. tit., II, pp. 168-174. 

 1894. Additional Notes on Iowa Mollusca. Proc. Iowa Acad. Sci., I, iv, pp. 107-111. 

 1894a. Variation of the Succineidae of the Loess. Op. cit., I, iv, p. 111. 



1896. A Theory of the Loess. Op. tit., Ill, 1895, pp. 82-89. 



1897. Additional Observations on Surface Deposits of Iowa. Op. tit., IV, pp. 68-72. 



1898. Is the Loess of Aqueous Origin. Op. tit., V, pp. 32-45. 



1899. The Distribution of Loess Fossils. Op. cit.. VI, 1898, pp. 98-113; Journ. Geol. 

 VII, pp. 122-140. 



1899a. (Notes on mollusks of the loess.) Mon. U. S. Geol. Surv., XXXVIII, pp. 171- 

 176. (Leverett) 



1901. Report on Loess Mollusca of Pottawattamie County. Iowa Geol. Surv. XI, 

 pp. 261-265. (Udden) 



1901a. Pyramidula shimeki (Pilsbry) Shimek. Bull. Lab. Nat. Hist. Univ. Iowa, V, 



pp. 139-170. 

 1901b. The Loess of Iowa City and Vicinity. Op. tit., V, No. 2, pp. 195-212; Amer. 



Geol., XXVIII, pp. 344-358. 



1902. The Loess of Natchez, Miss. Amer. Geol., XXX, pp. 279-299. 



1903. The Loess and the Lansing Man. Amer Geol., XXXII, pp. 362-364. 



1904. The Loess and the Lansing Man. Bull. Lab. Nat. Hist. State Univ. Iowa, V, 

 pp. 327-352. 



1903. Living Plants as Geological Factors. Proc. Iowa Acad. Sci., X, pp. 41-48. 



1904. Evidences(?) of Water-deposition of Loess. Bull. Lab. Nat. Hist. State Univ. 

 Iowa, V, pp. 368-381. 



1904a. Loess and the lowan Drift. Op. tit., V, pp. 352-368. 

 1904b. The Lansing Deposit not Loess. Op. cit., V, pp. 346-352. 

 1904c. The Loess of Natchea, Miss. Op. cit., V, pp. 299-326. 



1905. Additional Note on Helicina occulta. Journ. Geol., XIII, No. 3, pp. 232-237. 

 1908. The Loess of the Missouri River. Proc. Iowa Acad. Sci., XIV, 1907, pp. 237-256. 





