Teilhard de Chardin, Pierre Activation of energy / Pierre Teilhard de Chardin ; translated by Rene Hague - [1st American ed.] - New York: Harcourt, Brace, Jovanovich, 1970 - 416 p. 21 cm Originally published in France under the title L'Activation de l' Energie Includes bibliographical references. ISBN: 0151032769 LCCN: 75-142104 Subjects--Topical Terms: Religion and science.