The Homiletic Review Volume 12

The Homiletic Review Volume 12

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1886 edition. Excerpt: ...this study they followed it in some such mode as the following: They noticed that while a mollusk moved slowly through the water, a little fish much smaller could move quite rapidly. The mollusk had much more muscular tissue than the little fish, why, then, did it not move the quicker of the two? One marked difference was noticed to be that the little fish had a fully developed nervous system, including the incepalic ganglion, or brain, the spinal cord, and various other ganglia throughout the body, while the mollusk had only one ganglion, from which a few branches radiated to the different parts of the body. Following this line of investigation up through the whole animal kingdom, it was found that rapidity of motion and durability to continue at work were conditioned, other requirements being normal, on the amount of nerve matter in proportion to the muscular tissue. A horse with only about two pounds of nerve matter, including brain and spinal cord, ordinarily lives to be about twenty years of age, while man, who has about four pounds, including brain and spinal cord, lives to be fully three times the age of the horse. Amongst human beings it has been noticed that small people and larger people who have bigheads--i. e., a large proportion of nerve matter--are bodily more durable than those who have less brain matter. For further information on this wonderful subject, our readers are referred to any lately published standard work on the structure and function--bodily only--of the nervous system. All are cautioned against such descriptions aa are associated with theories of mind, for these do not give sufficient prominence to the purely bodily functions. Another point requires to be remembered, and that is, the two means "by which...
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Product details

  • Paperback | 364 pages
  • 189 x 246 x 19mm | 649g
  • United States
  • English
  • black & white illustrations
  • 1236892100
  • 9781236892102