CAPE COD CANAL joins Cape Cod Bay, Mass., with the waters of Buzzards Bay, an inlet of Long Island sound, and trav erses the narrow isthmus of Cape Cod. It is 8 m. long with a dredged approach channel 5 m. long. The width varies between I oo to 30o ft. and the depth at low water is 25 feet. The canal was first projected in early American colonial times and was subse quently a national project. It was finally put into operation in 1914 by private capital after five years of construction work. The canal has cut the distance, for water-borne traffic, between New York and Boston, via the East river, Long Island sound and the canal, by more than 75 miles. The Cape Cod canal was pur chased by the U.S. Government in 1928 and is operated toll free for both commercial and naval vessels. The traffic is in excess of Soo,000 cargo tons annually.