Lefroy, A.H.F. A Short Treatise on Canadian Constitutional Law. With an Historical Introduction by W.P.M. Kennedy. Toronto: The Carswell Company, 1918. xlvii, 322 pp. Reprinted 2008 by The Lawbook Exchange, Ltd. ISBN-13: 978-1-58477-777-9. ISBN-10: 1-58477-777-X. Cloth. $95. * Conceived for non-Canadian lawyers and students at colleges and law schools, this is a treatise on the constitution that governed Canada from 1867 to 1982, when it achieved complete political independence. The foremost interpreter of the Canadian constitution in his day, Lefroy [1852-1919] was an important Canadian jurist who helped to draft several principal amendments to Canada"s constitution. " Mr. Lefroy has written a valuable and informative book. (...) His work, on its scale, is a model for American lawyers to emulate.": H.J.L., Harvard Law Review 32 (1918-19) 583.