INTRODUCTION. 43 



Levbrett, Frank, The Illinois glacial lobe: Mon. U. S. Geol. Survey, vol. 38, 1899, pp. 339-379, 386-406, 432-450. 

 Discusses glacial features of southwestern Michigan. 



— Wells of Indiana: Water-Supply Papers U. S. Geol. Survey Nos. 21 and 26, 1899, 82 and 64 pp. 



Describes character of glacial deposits and presents numerous well records in each county. 



Surface geology of Alcona County, Mich.: Eept. State Geologist for 1901, pp. 35-64. 



Discusses physiography, glacial and lake history, and the several classes of soil. 



■ Glacial formations and drainage features of the Erie and Ohio basins: Mon. U. S. Geol. Survey, vol. 41, 1902, 



pp. 710-760, Pis. I, II, XX-XXIII, XXVI. 



Discusses and illustrates features of the drift and glacial lakes of southeastern Michigan. 



Glacial geology of the Grand Rapids area, Michigan: Geol. Survey Michigan, vol. 9, pt. 2, 1904, pp. 56-59. 



A brief outline of the main glacial features around Grand Rapids. 



Review of the glacial geology of the southern peninsula of Michigan: Sixth Rept. Mich. Acad. Sci., 1905, 



pp. 100-110. 



Successive ice advances, glacial lobes, strise, and glacial lakes are briefly treated and also the origin of the Great 

 Lakes. 



Drumlins in the Grand Traverse (Mich.) region (abstract): Bull. Geol. Soc. America, vol. 16, 1906, p. 577. 



Some drumlins appear to be sculptured from earlier deposits and some built up by slow accretion. 



Flowing-well districts of the eastern part of the northern peninsula of Michigan: Water-Supply Paper U. S. 



Geol. Survey No. 160, 1906, pp. 29-53. 



Discusses wells from rock as well as from drift formations from St. Marys River westward to Green Bay. 

 and others. Flowing wells and municipal water supplies of the southern part of the southern peninsula of Mich- 

 igan: Water-Supply Paper U. S. Geol. Survey No. 182, 1906, xii, 292 pp. Flowing wells and municipal water 

 supplies of the middle and northern parts of the southern peninsula of Michigan: Water-Supply Paper U. S. 

 Geol. Survey No. 183, 1906, xii, 393 pp. 



These two papers present reports by Bowman, Cooper, Davis (C. A.), Fuller (M. L.), Gregory (W. M.), Lane, 

 McLouth, Nellist, Sherzer, and Udden (Jon A.), as well as by Leverett. Describes about 300 flowing- well areas, 

 all public supplies in cities and villages having waterworks, and the general underground-water conditions of 

 the peninsula. 



■ Glacial formations and drainage history of the Ann Arbor quadrangle: Ann Arbor folio (No. 155), Geologic 



Atlas U. S., U. S. Geol. Survey, 1908. 



Gives a brief description of the glacial and lake features, the drainage history, and the underground waters. 



Weathering and erosion as time measures: Am. Jour. Sci., 4th ser., vol. 27, 1909, pp. 249-268. 



Discusses the various drift sheets in America as affected by weathering and erosion and compares them with 

 European drifts. 



An outline of the history of the Great Lakes: Twelfth Rept. Michigan Acad. Sci., 1910, pp. 19-42. 



Presents the preglacial, interglacial, and postglacial history and describes the effects of differential uplift. 



Surface geology and agricultural-conditions of the southern peninsula of Michigan: Pub. Michigan Geol. and Biol. 



Survey No. 9, Geo! ser. 7, 1912, 144 pp. 

 - Time relations of glacial lakes in the Great Lakes region [abstract]: Jour. Washington Acad. Sci.. vol. 3, No. 



8, 1913, pp. 237-238. 



Levette, G. M., Observations on surface geology and lakes of Dekalb, Steuben, Lagrange, Elkhart, Noble, St. Joseph, 

 and Laporte counties, Ind.: Fifth Ann. Rept. Geol. Survey Indiana, 1873, pp. 430-474; Seventh Rept., 1875, 

 pp. 469-503. 



Presents notes on the topography, old shore lines, drainage, water power, flowing wells, peat, bog iron, and 

 marl deposits, and gives determinations of depth, temperature, and molluscan fauna of the principal morainal lakes. 

 Livingston, B. E., Distribution of the jdant societies of Kent County, Mich.: Rept. State Board Geol. Survey Mich- 

 igan for 1901, pp. 81-103. 



Studies the connection between the botanical distribution and the soils and surface geology. 



The relation of soils to natural vegetation in Roscommon and Crawford counties, Mich. : Rept. State Board 



Geol. Survey Michigan for 1903,. pp. 9-30. 



A similar study to that in Kent County (notes above) . 

 Logan, W. E., Superficial geology of the St. Lawrence Basin: Geology of Canada, 1863, pp. 886-930. (Summary by 

 Dr. Robert Bell.) 



Summarizes results of investigation of the drift deposits in Canada. 

 Lyell, Charles, On the ridges, elevated beaches, inland cliffs, and bowlder formations of the Canadian lakes and 

 valley of the St. Lawrence: Am. Jour. Sci., vol. 46, 1844, pp. 314-317. 

 Presents general notes on each topic. 

 Maxgum, A. W., and Mann, C. J., Soil survey of the Owosso area, Michigan: Field operations Bur. Soils, 1904, TJ. S. 

 Dept. Agri., 1905, 27 pp. and map. 



Discusses soils and agricultural methods and conditions in the northern half of Shiawassee County, an area of 

 270 square miles. , 



Marsters, V. F., Topography and geography of Beanblossom Valley, Monroe County, Ind.: Proc. Indiana Acad. Sci., 

 1901, pp. 222-237. 

 Considers the preglacial. glacial, and postglacial history of the valley and its environs. 



