Pammel, L. H.  1862-1931. <br/><br/>
A comparative study of the vegetation of swamp, clay, and sandstone areas in western Wisconsin, southeastern Minnesota, northeastern, central, and southeastern Iowa, 
by L. H. Pammel. 
 - [Davenport? Ia.]  1905. 
 - [1], [32]-126 p.  illus. (incl. maps)  24 cm. 
<br/><br/> Reprinted from vol. x, Proceedings of the Davenport academy of sciences, Davenport, Iowa. 
<br/><br/>Bibliography: p. 34. 
<br/><br/><label>LCCN: </label>agr06000185  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plant ecology.<br/>Plants--Iowa.<br/>Plants--Minnesota.<br/>Plants--Wisconsin.
<br/><br/><label>LC Class. No.: </label>QK903  / .P18