Rivers : HALS with ZOOM IN on natives bailing out a dug-out canoe. FOLLOW SHOTS of dug-out canoes, large and small, being poled, paddled past. HAS of several natives at boat anchorage, several dug-out canoes at mooring. Shot of native boys sitting in canoe, chatting. Shots of others paddling away, follow of same. LSs of two large dug-out canoes moving on glassy water, of a narrow stream, small crews manning boats. LSs, of five-man dug-out canoe carrying Dr. and Mrs. Alex McMahon and a White nurse and two native rowers. Shot of Dr. Alex McMahon manning one of the oars.