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Die SelbstÃ¤ndigkeit des sympathischen Nervensystems - Bidder, F. H.; A. W. Volk - 1842. 
Leipzig: Breitkopf & Haertel, 1842. Bidder, Friedrich Heinrich (1810-94) and Alfred Wilhelm Volkmann (1800-1877). Die SelbstÃ¤ndigkeit des sympathischen Nervensystems durch anatomische Untersuchungen nachgewiesen. , 88pp. 3 plates. Leipzig: Breitkopf and HÃ¤rtel, 1842. 267 x 211 mm. Quarter morocco, marbled boards in period style. Some foxing and toning, but very good. First Edition. German physiologists Bidder and Volkmann performed important investigations of the sympathetic nervous system, one of the two main divisions of the autonomic nervous system responsible for regulating the bodyâs unconscious actions. The two âshowed the sympathetic nervous system to consist largely of small, medullated fibers originating from the sympathetic and spinal ganglia (Garrison-Morton.com 1318). In their investigations Bidder and Volkmann âintroduced mathematical precision by inventing ways of measuring the caliber of nerve fibers, and popularized the numerical method in biological microscopy . . . [Their methods] added a new dimension to histological research, because not only was precision increased but in addition it was now possible for an investigator to test anotherâs accuracyâ (Clarke and Jacyna, Nineteenth-Century Origins of Neuroscientific Concepts, p. 360).
[Bookseller: Jeremy Norman's Historyofscience.com]
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