PMID: 11624368Oct 20, 2001Paper

The envisioning of cells

Science in Context
O Parnes

Abstract

Microscopical consideration played a crucial role in German physiology in the period of, grosso modo, 1780-1830. Specifically, a conception of material change was established, according to which all life is grounded in the process of the generation of microscopical forms out of an amorphous, primitive generative substance. Embryological development, tissue growth, and the generation of microorganisms were all considered to be the manifestation of this fundamental developmental process. In contrast to the common historiography, I try to understand Theodor Schwann's 1838 discovery of the cell theory in terms of the epistemological categories he applied to the prevailing conceptions of life and living matter. I argue that Schwann was able to discern cells not because of any superior microscopical methods, but rather as part of his wider investigative endeavor to explicate life processes according to specific causal agents. I argue that Schwann was able to demonstrate the existence of cells only when he considered animal tissues in terms of a causal relation between specific material agents and their effect, that is, the developmental history of tissue.

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Citations

Oct 12, 2010·Studies in History and Philosophy of Biological and Biomedical Sciences·Staffan Müller-Wille
May 28, 2015·History and Philosophy of the Life Sciences·Florence Vienne
Dec 7, 2016·Journal of the History of Biology·Daniel Liu

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