Note: I. Noburu Ezawa; Application of Heat Pipe to Solar Energy R & D pp. 1-17, II. Hideo Furuya; Heat Pipe Applications to Electronic Devices, Electric Equipments and Machine Tools pp. 18-39, III. Yasunori Kobayashi; A Probability of Heat Pipe Engine pp. 40-61, IV. Tatsuya Koizumi; The Present State of Utilization of Heat Pipe pp. 62-80, V. Saburo Maezawa; Rotating Heat Pipe pp. 81-94, VI. Tadashi Matsushita; Development of a Gas-loaded, Variable Conductance Heat Pipe for Space Application in Japan pp. 95-105, VII. Kanji Negishi; Characteristics of a Two-Phase Closed Thermosyphon pp. 106-131, VIII. Osamu Tanaka; Snow Melting and Deicing System Using Heat Pipes pp. 132-146