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September 5, 1903


Author Affiliations

Instructor in Pathology, Harvard University; Second Assistant Visiting Pathologist, the Boston City Hospital, and Assistant Pathologist, the Children's Hospital. BOSTON.; From the Sears Pathological Laboratory of Harvard University, and the Pathological Laboratory of the Boston City Hospital.

JAMA. 1903;XLI(10):593-600. doi:10.1001/jama.1903.92490290005001b

In pathology the advances by which our knowledge of any subject is obtained often take the form of a wave. An epidemic occasions renewed interest and furnishes abundant fresh material; a new technical procedure stimulates investigation and invites the reëxamination of accumulated material : the result is a series of contributions revealing new facts concerning the subject. Such a period of activity was inaugurated in the study of neuroglia tissue by the publication in 1895 of the staining methods of Weigert1 and of Mallory.2 Since then has come most of our knowledge of this tissue. Many investigators have been engaged on its problems, and other staining methods have been introduced, but none of these differential methods appears to have been applied to any extent in the examination of similar elements in teratoid tumors. In a teratoma of the ovary, some features of which have already been published,3

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