38 Transactions of the Academy of Science of St. Louis 
suggest methods of analyzing and presenting information for the 
area. The study is based primarily upon work undertaken since 
June, 1937, but has a background of geographic and geologic 
field work which was carried on intermittently over a period of 
years and amounts to at least one full year of investigation. 
AVAILABLE MAPS 
The Ozark Province is less completely mapped than many 
other areas. State maps and a few quadrangles present the 
major facts of areal geology; a number of maps, among which 
that of Shantz and Zon’ js outstanding, show the distribution 
of native vegetation; and topographic sheets, covering most of 
the area reveal the essential surface characteristics. Many new 
quadrangles have been published in the last few years, and others 
are available in preliminary editions. Some of the older topo- 
graphic maps, however, are inaccurate because of their fifty-foot 
contour interval and require checking in the field. Soil maps of 
the Ozarks are inadequate, as they are based on reconnaissance 
studies and on detailed work in limited areas. 
Other maps of importance in a study of the Ozark Province 
are those of Fenneman‘, Figure 1, Lobeck’, Figure 2, Sauer®, 
Figure 3, and Schottenloher’. Pentienien delineates the approxi- 
mate boundaries of the major physical divisions and describes 
their physiography; however, he does not indicate minor divi- 
oo Hi, Shantz and Raphael Zon: Natural Vegetation, Atlas of 
Amer. es Pt. 1, Sec. E, 1924; reference is to map preceding p. ©. 
M. Fenneman: Physiographic Divisions of the ted sarge 
Uni 
as Ass'n. of Amer. Geogr’s., Vol. 18, 1928; cereas 1S 
ie map in pocket. 
5. K. Lobeck: A Bea esis Diagram of the United States, 
A. I Nystrom and Co., 1921. 
Carl O. Sauer: ~ Ozark Highland of Missouri, Univ. of 
Chicazo Press, 1920; reference is to maps on pp. 4,37, and 62. 
7. fue shot Schottenloher: Ozarkland, Amerikanishe Landschaft, 
Erich y rygalski, editor, Berlin, 1936, pp. 1-125; reference is 
to Abb. ‘1, 16, and 17, 
