The nervous system and its functions / By Herbert Mayo.

  • Herbert Mayo
Date:
1842
Catalogue details

Licence: Public Domain Mark

Credit: The nervous system and its functions / By Herbert Mayo. Source: Wellcome Collection.

    25/208 page 11
    LAWS OF THE NERVOUS SYSTEM RELATING TO SENSATION AND VOLUNTARY MOTION. I. THE nervous system is formed of two dis- similar textures, which are, for the most part, distinguishable by their colour; one being gray, ashen, or cineritious, the other of an opaque white, of the tint termed orange white. The first is principally composed of minute corpuscles. The second, of tubes containing either a gelatinous liquid or a defi- nite filamentous structure. When portions of the nervous system, comprising the two. textures, have acquired consistence through maceration in alcohol, the gray is found to have a granular fracture, the white to tear into threads, which are bundles of nerve- tubes. In mammalia, birds, and reptiles, and in the enkephalon of fish, the distinction of colour in the two textures is strictly observed. In the
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