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|All Authors / Contributors:||
Frederick L Fitzpatrick
|Notes:||Originally submitted as a thesis in partial fulfillment of requirements for a Ph.D. degree at the University of Iowa in 1923.|
|Description:||40 pages, v leaves of plates : illustrations ; 24 cm.|
|Series Title:||University of Iowa studies in natural history (1918), v. 11, no. 1.; University of Iowa studies, new ser., no. 86.|
|Responsibility:||by Fredreick L. Fitzpatrick.|