Identifier: someapostlesofph00stir (find matches)
Title: Some apostles of physiology : being an account of their lives and labours, labours that have contributed to the advancement of the healing art as well as to the prevention of disease
Year: 1902 (1900s)
Authors: Stirling, William, 1851-1932
Subjects: Physiology Physiologists Physiology
Publisher: London : Priv. print. by Waterlow and sons limited
Contributing Library: West Virginia University Libraries
Digitizing Sponsor: LYRASIS Members and Sloan Foundation

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( 99 ) It isnot to be imagined, however, that the whole of the credit is due to Schwann.Much had been done before his time by the English botanist, R. Brown, who discoveredthe nucleus in vegetable cells, in 1831; by Schleiden; by G. Valentin, who dis-covered the nucleolus in 1836 ; Henle, Purkinje, and many others, but the soil wasready, and Schwann grasped the situation at the psychological moment. His theoryas to the origin of cells from a blastema was, however, nothing more than aningenious, but utterly fallacious speculation. This doctrine of Schwanns was absolutelydenied by Virchow, who paraphrasing the original statement of Redi and Harvey, omne vivum ex ovo, said omnis cellula e cellula, i.e., every cell comes from a pre-existing cell. After 1840 a period of great activity set in, marked by the work ofMartin Barry, R. Remak, J. Goodsir, Xaegeli, Max Schultze, L. Beale, Leydig, Kolliker,and many others upon the structure and mode of development of the cell. Schwann,like Bernard,

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