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By: Schaeffer, Asa A. (Asa Arthur),Edition:Publication info: Princeton, Princeton university press; [etc., etc.], 1920Volume:Series:Holding Institution: MBLWHOI LibrarySubjects:BHL Collections:
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By: Schaeffer, Asa A. (Asa Arthur),Edition:Publication info: Princeton, Princeton University Press, 1920Volume:Series:Holding Institution: Francis A. Countway Library of MedicineSubjects:BHL Collections:
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By: Schaeffer, Asa A. (Asa Arthur),Type: ArticleIn: The Biological bulletinVolume: 32Series:Issue:Date: 1917-02-01Page Range: 45--742Publication Info: Woods Hole, Mass Marine Biological LaboratorySubjects: