Rensselaer Republican, Volume 16, Number 34, Rensselaer, Jasper County, 1 May 1884 — The Aspeets of the Body. [ARTICLE]

The Aspeets of the Body.

have not thought upon the subject to suppose that any connecting link can be found between such animals as worms, mollusks, Crustacea, spiders and insects, on the one hand, and fishes, ampliia, reptiles, birds snd mammals on the other. Yet it is a significant fact that if any one of the first series of animals be turned upon its back, the heart., nervous system, stomach, etc., stand in precisely the same relative poattioirto each other as they do intha latter series. The only thing that differs in position is the mouth, which in the first series opens out between the two nervous ganglia which form the brain, and is directed toward the side of the body on which the nervous axis is situated, and in the second series opens out beneath the brain, and on tha opposite Bide of the body to that occupied by the nervous axis. Prof. Owen believes that certain structures which are situated in the center of the brain use, are remains of the primitive course 6f the upper part of tho gullet, and show the vertebrate developed from the invertebrate. Pittsburgh Disyatch. h-