The principal islands of the group, as mentioned, are separated by narrow water-ways, admitting the passage of the largest ships through them, with the exception of the narrows of Skidegate Channel and Inlet, navigable only for small vessels at flood tide. These are Parry Passage, between North and Graham Islands, a mile-and-a-half in width, and two miles-and-a-half in length, Skidegate Inlet and Channel separating Graham from Moresby Island, together thirty-five miles in length, and from 250 feet to seven miles in width, and Stewart Houston Channel twelve miles long, with an average breadth of a mile and-a-half, between Moresby and Provost Island. We also found a short canoe passage between the latter island and Cape St. James. Besides these sea channels extending across the group, there are twenty inlets from three to fifteen miles in depth, generally running in an easterly and westerly direction, and reaching to the base of the high mountains described. These numerous inlets, with the bays therein embraced, leave but a skeleton land of Moresby Island and the south-western portion of Graham. Massett Inlet, the deepest indentation in the archipelago, penetrates the latter island for eighteen miles, and then expands into an open sea nearly twenty miles in length and over six miles in width. * * * * * Bays, Harbors and Sounds. The waters surrounding these islands embrace numerous bays, harbors and sounds, of which Cloak Bay, North Island, Virago Sound, Naden and Massett Harbors of Graham Island, Darwin and Juan Perez Sounds, Laskeek, Sedgwick, Henry and Robson Bays, Gold Harbor of Moresby Island, Cartwright and Rennell Sounds, and the excellent harbors afforded by Kio-Kath-li, Skaloo, Athlow, and Seal Inlets on the west coast of Graham are the most important. There are no harbors, except for small boats, between Massett and Skidegate Inlets by the east coast. * * * * * Islands. Of the great number of islands and islets contained in the archipelago the largest and most important except those mentioned are, Louise, Lyell, Barnaby, Tal-un Kwan, Tanoo, Ramsay, Murchison, Kun-ga, Faraday and Huxley Islands, all lying off the east coast of Moresby; Maud and South Islands in Skidegate Inlet; Cub, Edward Kwa-kans, Wat-hoo-us and Multoos of Masset Inlet and Sound; Frederick and Nesto on the west coast of Graham and Chathl island between the entrance waters of Skidegate Channel and the canoe passage connecting therewith. Of these named Lyell and Louise islands, the largest, are about 15 miles in length and from five to ten miles in width. Barnaby, Talun-Kwan, Tanoo and Cub islands are each from eight to ten miles long. The others are much smaller--from two to three miles in length.