National Geographic : 1942 May
Family Afoot in Yukon Wilds 591 Billy Learns to Make a Raft without Nails or Rope Using a thin Swedish saw blade held taut by a willow "bow," father and son cut dovetailed notches in both ends of dry spruce logs. Through these they will drive crosspieces hewn to fit the dovetails (Plate VIII). From His Isolated Log Cabin, Jack Baker Guides Pilots Flying over the Wilderness His friendly voice coming over the radio gives weather reports and flying information on the long route between Fort Nelson and Whitehorse. Power for the batteries is generated by a wind charger in summer when there is sufficient breeze and by a motor-driven generator during calm spells in the winter.