Hinkley, who had edited the _Hilo Tribune Herald_, became managing editor of the _Honolulu Star-Bulletin_ and published a series of my radio addresses on Kilauea. He also sent his photographer to photograph our laboratories, thereby keeping the public informed about volcano study. And he worked up a history of my navy monographs and hardness testing instruments. He was a lovable fellow whose publicity instinct was a great asset to volcano science. He did not think of a volcano as something sensational, but remained moderate about it and informed his public accurately. Through him, the Volcano Observatory reports came to be accepted as desirable routine, and he was elected a director of the Volcano Research Association. His many friends were desolated by his early and sudden death. Porteus is an Australian man of science who conducted expeditions among the Australian blacks and the primitive Africans of Kalihari and specialized in the mental outlook of primitive peoples. He devised a famous maze for intelligence tests. He has published numerous books about Hawaii and several novels, including “Restless voyage,” the life of Archibald Campbell, who lived with Kamehameha the great and survived amputation of both legs. With Guido Giacometti, who suggested airplane bombing of the volcano lava flows, Porteus and I foregathered at the crater frequently to discuss the constitution of earth interior. Porteus differed with my belief on the evolution of mind as a mutation of evolution. Like Hinkley he became a member of the Board of Directors of our Research Association. He is a judge of the juvenile court, skilled in curing delinquency. Porteus is a world thinker, who agrees with me in thinking of altruism as a form of energy. Porteus invented the title of this present book.