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Of the four Classes of Fibrous Motions. Of irritative Motions. - Of Sensitive Motions
. Of Voluntary Motions. Of Associate Motions. - Additional Observations on the
Sensorial Powers. - - Of Stimulus, Sensorial Exertion, and Fbrous Contračtion.
The immediate organs of sense. 6. The external organs of sense. 7. An idea or
sensual motion. 8. Perception. 9. Sensation. Io. Recollection and suggestion. 11.
Habit, causation, association, catenation, 12. Reflex ideas. 13. Stimulus defined.
The stomach and intestinal canal have a constant vermicular motion, which
carries forwards their contents, after the lasteals have drank up the chyle from
them; and which is excited into action by the stimulus of the aliment we swallow,
Hence, when we say animal motion is excited by irritation, we do not mean that
the motion bears any proportion to the mechanical impulse of the stimulus; nor
that it is affected by the general gravitation of the two bodies; nor by their
rays of light excite the retina into animal motion by their stimulus; at the same time
that those rays of light themselves are physically converged to a focus by the
inactive humours of the eye. The vibrations of the air stimulate the auditory nerve
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LibraryThing ReviewUser Review - Devil_llama - LibraryThing
Written by the grandfather of Charles Darwin, this book is a masterful treatise on the medical disorders and how to treat them. Primarily of interest to people who are interested in the period ... Read full review