Washington County News | 1900-05-05 | Page 3 | How Insects Make Soil

How- Insects Make Soil. Mr. Darwin once wrote a book, which many readers pronounced as interesting interest-ing as a novel, on earthworms and the wonderful way in which they plow up, turn over and invigorate the soil. In a recent address, Dr. L. O. Howard of Washington showed that many species of insects are also important agents in soil-making. They e.e found beneath the ground, he says, in surprising numbers, and they renetrate to a surprising sur-prising depth. "The minute insects of the family Poduridea which are winglesshave wing-lesshave been found swarming literally liter-ally b.v the million a a depth of six to eiaht'ieet in a stiff clay subsoil."