LITERATURE CGyTi 
Bush, B. F. 
1895. Notes on the mound flora of Atchison County, Missouri. Mo. Bot. Gard. Ann, Rep. 
6:121-34. 
Chamberlin, T. C. fs Meats) 
1897. Supplementary hypothesis respecting the origin of the loess of the Mississippi Valley. 
Jour. Geol. 5(8) :795-802. 
Costello, David F. ; 
1931. Comparative study of river bluff succession on the Iowa and Nebraska sides of the 
Missouri River. Bot. Gaz. 91:295-307. 
Deam, Charles C. : : ; i 
1940. Flora of Indiana. Department of Conservation, Division of Forestry, Indianapolis, 
Indiana. 1,236 pp. 
Ellsworth, H. L. 
1837. Illinois in 1837. S. A. Mitchell, Philadelphia. 143 pp. 
Evers, Robert A. 
1951. Four plants new to the Illinois flora. Rhodora 53(628) :111-3. 
Fernald, Merritt Lyndon 
1950. Gray’s Manual of Botany. Ed. 8. American Book Company, New York. 1,632 pp. 
Gates, Frank Caleb 
1912. The vegetation of the Beach area in northeastern Illinois and southeastern Wisconsin. 
Ill. Lab. Nat. Hist. Bul. 9(5) :255-372. 
Gleason, Henry Allan 
1910. The vegetation of the inland sand deposits of Illinois. Ill. Lab. Nat. Hist. Bul. 
9(2) :23-174. 
[1923.] The vegetational history of the Middle West. Assn. Am. Geog. Ann. 12:39-85. (Vol- 
ume dated 1922.) 
1952. The new Britton and Brown illustrated flora of the northeastern United States and 
adjacent Canada. Vol. 1. The Pteridophyta, Gymnospermae and Monocotyledoneae. 
New York Botanical Garden [New York, N. Y.]. 482 pp. 
Hanson, Herbert C. 
1922. Prairie inclusions in the deciduous forest climax. Am. Jour. Bot. 9(6) :330-7. 
Hitchcock, A. S. 
1950. Manual of the grasses of the United States. Ed. 2 (revised by Agnes Chase). U. S. 
Dept. Ag. Misc. Pub. 200. 1,051 pp. 
Hopkins, Harold H. 
1951. Ecology of the native vegetation of the loess hills in central Nebraska. Ecol. Monog. 
21 (2) :125-47. 
Hus, Henri 
1908. An ecological cross section of the Mississippi River in the region of St. Louis, Missouri. 
Mo. Bot. Gard. Ann. Rep. 19:127-258. 
Jones, George Neville 
1950. Flora of Illinois. Ed. 2. University of Notre Dame Press, Notre Dame, Indiana. 
368 pp. 
Korstian, Clarence F., and Theodore S. Coile 
1938. Plant competition in forest stands. Duke Univ. Forestry Bul. 3. 125 pp. 
Leighton, Morris M., and H. B. Willman 
1950. Loess formations of the Mississippi Valley. Jour. Geol. 58(6) :599-623. 
Leonard, A. Byron 
1952. Illinoian and Wisconsinian molluscan faunas in Kansas. Kans. Univ. Paleontol. Con- 
trib., Mollusca 4. 38 pp. 
Leonard, A. Byron, and John C. Frye 
1954. Ecological conditions accompanying loess deposition in the Great Plains region of the 
United States. Jour. Geol. 62(4) :399-404. 
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