People's Pilot, Volume 3, Number 17, Rensselaer, Jasper County, 13 October 1893 — ABOUT OURSELVES. [ARTICLE]

ABOUT OURSELVES.

The largest apes have only sixteen ounces of brain. The lowest men have thirty-nine. Human blood is. composed of 77.8 parts of water, 6.2 of albumen, 14.1 of coloring matter and 1.9 of saline. The amount of air that a man can inhale in twenty-four hours will fill seventy-eight hogsheads and weigh fifty-three pounds. Many species of bacteria are beneficial instead of hurtful to man. Many of them manufacture the neysary food for useful plants.