_My Experiments With_ Volcanoes [Illustration: THOMAS A. JAGGAR _January 24, 1871--January 17, 1953_] _My Experiments With_ Volcanoes THOMAS A. JAGGAR “_Through faith we understand That the worlds were formed By the word of God, So that things which are seen Were not made of things which do appear._” MCMLVI HAWAIIAN VOLCANO RESEARCH ASSOCIATION HONOLULU Copyright, 1956, by the Hawaiian Volcano Research Association PRINTED IN THE UNITED STATES OF AMERICA BY THE COMMERCIAL PRINTING DIVISION OF THE ADVERTISER PUBLISHING CO., LTD., HONOLULU _Thomas Augustus Jaggar, Jr._ _January 24, 1871_ _January 17, 1953_ _It is the wish of the members of the Hawaiian Volcano Research Association to share with others the experiences they have enjoyed in their association with a truly great man._ _On October 5, 1911, through the efforts of Thomas Augustus Jaggar, Jr., the Hawaiian Volcano Research Association was organized to assist in the support of the newly created Hawaiian Volcano Observatory at Kilauea, Hawaii. Accepting Dr. Jaggar’s sincere belief that a systematic and continuous study of volcanoes would result in the protection of life and property, the motto the Hawaiian Volcano Research Association adopted was “Ne plus haustae aut obrutae urbes.”_ _Dr. Jaggar arrived in Hawaii to take up his work at the Observatory on January 17, 1912--exactly forty-one years before the day of his death on January 17, 1953._ _Dr. Jaggar spent the last years of his life writing the history of his sixty years of intensive, rugged, and hazardous scientific achievements. During many of these years, and up to the completion of his life’s history, it has been well stated that one of his most valuable co-workers was his wife, Isabel, who shared with him the disappointments, the joys of discovery, and much of the physical work. It is the privilege of the officers, directors and members of the Hawaiian Volcano Research Association to present in book form this story of Dr. Jaggar’s life._ CONTENTS CHAPTER PAGE I. YOUNG SCIENTIST 3 II. IMITATING RIPPLEMARKS 32 III. EXPEDITION DECADE 55 IV. LIVING WITH VOLCANOES 85 V. EXPANSION DECADE 114 VI. PROPHECY AND HOPE 151 VII. ENVOI 177