RAAG memoirs of the unifying study of basic problems in engineering and physical sciences by means of geometry: edited by Kazuo Kondo, diagrams, illustr., 8 × 13 in., Tokyo, Japan. Published for the Research Assn. of Applied Geometry, by Gakujutsu Bunben Fukyukai, T.I.T. Oh-Okayama Neguro-k, Tokyo, Vol. I: 612 pp., 1955, price $12.50; Vol. II: 614 pp., 1958, price $17.50; Vol. III: 775 pp., 1962, price $33.50; Vol. IV: 650+ pp., 1968, price $48.50