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Show Ilnw In.rrta llukv Holt. Mr. Darwin once wrote a book, which many readers pronounced as Interest-Ins Interest-Ins a a novel, on earthworms and tho wonderful w) In which they plow up, turn oter and Invigorate the soil. In a recent address, Dr. I 0 Howard of Washington showed that many specie of Insects are alto Important agents In soil-making. They r e found beneath the ground, he e&yt, In surprising numbcrt, nnd they penctrato to a surprising sur-prising depth. "The mlauto Insect of tho family Podurldea which aro wing-let wing-let have been found swarming literally liter-ally by the million a' a depth of six to eight feet In a stiff clay subsoil." |