Scope and Contents Postcard – No. 210 – Jupiter Terrace, Mammoth Hot Springs, Yellowstone National Park; The largest travertine terrace in the Park. Its brilliant hues are seen to the best advantage from the roadway that skirts its base. Azure hot springs of wonderful transparency crown the top.Postcard – No. 216 – Fish Cone in Yellowstone Lake, Yellowstone National Park; This hot water cone, perhaps the most celebrated of all the minor phenomena in the Park, is at the Thumb. Here, as Chittenden...