An associational study of Illinois sand prairie . Figure 2 . A dune complex at Millers, Indiana, in thesand regions of Lake Michigan. A nev7 geographicelement is introduced - the northern Figure 26. A sand dune in the Lake Michigan Region, atMillers, Indiana. The northern conifers maybe seen at the right. At the crest of the dunea cloud of sand is being blovm into the air. Theexposure was made on a very windy day. The sandof this region is finer than that of the riverdunes in central Illinois.

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Keywords: ., bookcentury1900, bookdecade1910, bookidassocia, booksubjecttheses