TY - BOOK AU - Faraday, Michael, 1791-1867. TI - On the various forces of nature. Illustrated with the original diagrs T2 - Crowell's library of Christmas lectures PY - 1961///, c1957] CY - New York : Crowell N1 - First published in 1860 under title: A course of six lectures on the various forcesof matter and their relations to each other; Contains Christmas lectures given at the Royal Institution in London, 1859-1860 ER -