Licence: Public Domain Mark
Credit: Documents and dates of modern discoveries in the nervous system. Source: Wellcome Collection.
Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.
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![one species of influence, with which animal bodies arc endowed— they are the proximate result of vitality, and merely differ from each other owing to the intimate structure of the parts in which they are seated, and to the extent to which each of the parts evincing their presence is supplied with ganglial ramifications. 3. Cerebral contractility is the contraction occasioned by the will in voluntary muscles. [But this is not necessary to our view of ganglionic function.] The first and second species of contractility result from the gan- glial distribution and influence. Were the Editor to add here still more recent doctrines on this portion of the nervous system, it would be by quoting those of Muller. But, as already said, his invaluable Manual is, or ought to be, in the hands of every student.](https://iiif.wellcomecollection.org/image/b21721804_0186.jp2/full/800%2C/0/default.jpg)
