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By: Churchill, E. P. (Edward Perry),Edition:Publication info: Washington, Govt. print. off, 1920Volume:Series:Holding Institution: Library of CongressSubjects:BHL Collections:
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By: Churchill, E. P. (Edward Perry),Type: ArticleIn: The Biological bulletinVolume: 29Series:Issue:Date: 1915-07-01Page Range: 68--86Publication Info: Woods Hole, Mass Marine Biological LaboratorySubjects: