Democratic Sentinel, Volume 17, Number 38, Rensselaer, Jasper County, 6 October 1893 — Physiological Oddities. [ARTICLE]

Physiological Oddities.

The muscles of a well developed human jaw can exert a force of 334. pounds according to recent experiments, The hlood in its natural state contains aa amount of pure water that is really astonishing to one who has not given the subject attention—nearly seven-eighths of its entire bulk. Kiel estimates the surface of the lungs at 150 square feet, or ten times that of the external body. There is enough of iron in the blood es forty-eight men to make a plowshare es twenty-feur pounds-weight.—[St. Loom Republican.