This very technical book, written in 1955 by Rene Dugas, a leading scholar and educator at the famed Ecole Polytechnique in Paris, is a must for any interested in the science of mechanics. This volume follows the study of mechanics from its ancient beginnings with Aristotle (384-322 B.C.), through the creative and influential work of Galileo, Huygens, and Newton, and finally to the relativistic mechanics, wave and quantum mechanics of the early 20th century. This comprehensive book is a must for anyone interested in the history of science.