On the various forces of nature / Michael Faraday. Faraday, Michael, 1791-1867. Physics. QC71 .F3 1960 504 FAO First published in 1860 under title: A course of six lectures on the various forces of matter and their relations to each other. Includes bibliographical references and index. New York : Viking Press ; Thomas Y. Crowell, 1957. 1957. 1960 Text xxx, 153 p. : eng