Image Description from historic lecture booklet: "Valleys through which glaciers pass are widened and deepened, and their walls made smoother. The deepening of a mountain valley by glacial erosion sometimes brings about a curious relation between it and its tributaries. The lower ends of the tributary valleys are much higher than the valleys which they join. Such valleys are called hanging valleys. They abound in the mountains of the western part of the United States, and in other mountains where glaciers formerly existed. The tributary may be left hanging, because the main valley is deepened by glacial erosion, while the tributary is not; or in some cases both the main and the tributary valley are deepened, but the former much more than the latter."
Image Description from historic lecture booklet: "The Murray and its tributaries drain a considerable portion of Queensland, the major part of New South Wales, and much of Victoria. The principal tributaries are the Darling, Murrumbridges, Lachlan, and Goulburn. With its two principal tributaries, the Murray is navigable for six months of the year for a considerable distance from the sea."
Image Description from historic lecture booklet: "At the foot of Gilboa Mountains in the fertile valley of Jezreel on the road between Jezreel and Beth Shean, this copious spring busts forth, called Gideon's Fountain because it has been located as the scene where Gideon tested the strength and faithfulness of his men and afterward won the victory over the Midianites (Judges 7-7). The cavery furnishes a delightful place of retreat from the hot sun of that valley after a hard forenoon's travel either from Jenin of Beisan. The pool is made entirely by a dam, apparently ancient, and from it the water is carried off to operate a succession of mills down the valley."