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IOWA ACADEMY OP SCIENCE 
Explanation op Plate VIII. 
Fig. 1. A meadow with large Kansan boulders strewn over the surface. In north 
half of Sec. 17, T. 91 N., R. XIII. W. Appears like Iowan, but is evidently 
Kansan. (See p. 119.) 
Fig. 2. A ridge of Kansan drift northwest of New Hartford, Iowa. Boulders appear 
on the surface quite to the summit, the soil covering being scant. (See 
p. 119.) A part of a Kansan island in Iowan territory. 
