Although both stations were within fifty miles of active volcanoes, earthquakes were not numerous, and the story was very different from that told by our records made at the edge of Kilauea caldera, only two miles from an active lava center. Thus we have demonstrated that the only way to study an active volcano is to live close to the crater itself, even if a shelter has to be built underground. In concluding this story of our Alaskan expeditions of the twenties, in contrast to my windjamming experience of 1907, I must underscore the importance of water transportation and credit those who have provided it. In fact, all transportation was by water until aircraft became supplemental. I feel that the U.S. Coast Guard, which takes care of the Pribilof Island seals, is the supreme achievement of our government in policing these stormy waters. Their 60-foot motor cruiser, equipped with sails has come to be standard for such government bureaus as the Biological Survey and has replaced the earlier, 80-foot sealing schooner among the traders. The canneries maintain big boatbuilding yards and operate large and powerful tugs for visiting the salmon traps. The traps are heavy weirs made of northwest pine logs, which are battered to pieces by the winter storms and must be rebuilt with pile drivers every spring. Thus a by product of cannery activities, and a godsend for trappers, fishermen, Aleuts, and campers is the pine lumber distributed all along the beaches from the annual wreckage of salmon traps. It is the only firewood and construction material of the country to be found anywhere west of Kodiak, for the land has no forests. Our contribution to the boating problem was the exhibition of what an amphibian landing truck will do on Alaskan beaches and its usefulness along those beaches where a boat may be in difficulties from stormy weather. I returned to my Hawaii headquarters in the fall of 1928. The year 1929 was marked by an earthquake crisis which began in mid-September with an unusual number of shocks in the vicinity of Hualalai Volcano, a place hitherto notably free from earthquakes. This was of interest because events on Mauna Loa had shown higher and higher lava sources and quake centers for the south rift. The 1926 outflow had begun by splitting northward across the summit crater, and there making a considerable flow eastward toward Wood Valley while Wingate and his topographic party were in camp close to the summit. Therefore, when the 1929 quakes began near Puuwaawaa, it looked as though Mauna Loa eruptions might begin again at the northwest.