292 LIFE OF THE PLEISTOCENE 



by Penhallow from material obtained at depths of 100 and 107 feet below the 

 surface at the base of the Wisconsin drift. 24 



Picea canadensis ( = alba) Taxus minor ( = baccala) 



In Sangamon County 25 a section in a well (NE J4 Sect. 36, T. 18, R. 6, W.) 

 showed the following strata: 



Soil, black 3 feet 



Clay, yellowish, fine grained (loess) 9 " 



Soil, black, with pieces of wood (Sangamon) 4 " 



Clay, yellow (Illinoian drift) 5 " 



Boulder clay, blue, compact, with some quicksand (Illinoian drift) 10 " 



Height of section 31 feet 



The Sangamon soil overlies the drift in many places in this county, and 

 includes logs and branches of trees. Mucky soil is reported by Leverett from 

 beneath Wisconsin drift in Moultrie, 26 LaSalle, 27 and under 160 feet of Wiscon- 

 sin till at Barringon, Lake County. 2 * In the Fox River Valley the Wisconsin 

 is underlaid by a thick bed of peat which overlies the Illinoian drift. 29 The 

 Sangamon soil horizon has been definitely recorded from the following counties 

 in Illinois: 



McLean, 30 Henry, 31 Logan, 32 Edgar, 33 Greene, 34 Carroll, 35 Peoria, 36 Tazewell; 33 

 Sangamon, 37 Christian, 38 Menard, 39 , Cumberland, 40 Coles, 40 Shelby, 40 , Cass, 40 

 Knox, 40 LaSalle, 41 Iroquois, 41 Vermilion, 41 Champaign, 41 Ford, 41 Livingston, 41 

 McHenry, 41 Kane, 41 Clark. 42 



24 Bull. Geol. Soc. Amer., I, p. 333. 



25 Shaw and Savage, Tallula-Springfield Folio, U. S. G. S., No. 188, p. 8. 

 -" Illinois Glacial Lobe, p. 730. 



"Op. cit., pp. 636-641. 

 2i Op. cit., p. 581. 



29 B. W. Thomas, personal communication. 



30 Leverett, Illinois Glacial Lobe, p. 694. 



31 Op. cit., p. 624. 

 31 Op. cit., p. 709. 



33 Op. cit., p. 732. 



34 Op. cit., p. 745. 



35 Leverett, Illinois Glacial Lobe, p. 612. 

 38 Udden, Bull. 506, U. S. G. S., p. 56. 



37 Leverett, Proc. Iowa Acad. Sci., V, p. 76. 



38 Worthen, Geol. 111., VIII, p. 15. 



39 Op. cit., p. 16. 



40 Leverett, Proc. Iowa Acad. Sci., V, p. 78. 



41 Leverett, Proc. A. A. A. Sci., XXXV11, pp. 183-184. 



42 Leverett, Illinois Glacial Lobe, p. 733. 



