Dinosaurs

Dinosaurs, by William Diller Matthew, is a classic zoology text and one of the first books published on the subject of dinosaurs. Paleontology deals with the History of Life. Its time is measured in geologic epochs and periods, in millions of years instead of centuries. Man, by this measure, is but a creature of yesterday--his "forty centuries of civilization" but a passing episode. It is by no means easy for us to adjust our perspective to the immensely long spaces of time involved in geol...