KNOW YOUR Hil ie The Seaway Issue Copyright 1987 by Thomas Manse Twenty-Eighth Edition ISSN No. 0190-5562 Corrected by John Vournakes Phyliss Weaver Published and Printed by: Marine Publishing Company, Inc. Thomas Manse, Publisher Post Office Box 68 Sault Ste. Marie, Michigan 49783 Photo on front cover by Peter Worden Photo on back cover by Peter Worden 1