Erosion Theory

a theory or hypothesis which attributes the excavation of lakes chiefly to the erosive power of water in the form of glaciers, instead of regarding them as due to the existence in the spots where they occur of cracks or fi ures in. the strata, Eros trat us, or Hero stratus, a Greek enthusiast; born about 376 B. ©., whose longing for fame prompted him to set fire to the temple of Diana at Ephesus. The deed was done on the night Alexander the Great was born. Eros trat us has been spoken of as “the youth who fired the Ephesian dome.”; Erratics, or Erratic Blocks, boulders or large ma es of angular rock which have been transported to a distance from their original mountains by the action of ice during the glacial period. In New England they are frequently prominent features in the landscape. At Nottingham, N. H., one weighs 6,000 tons. At New —— Conn., the Judge’s Cave is form from erratic blocks.. Error, a wandering or deviation from what is true or right. In astronomy, the difference between the positions of any of the heavenly bodies as determined by calculation and by observation; in law, a mistake in the proceedings of the court of record on matters of law, entitling the party grieved to have the case reviewed; in mathematics, the difference between the result arrived at by any operation and the true result; in horology the difference between the time to which a clock really points and that which it was intended to indicate.