hardcover. Translated into German from the original Dutch by Helga Habicht. Illustrated with 47 in-text figures. vii, 594pp. Thick 8vo, blue- lettered pale cloth, d.w. Berlin: Springer Verlag, 1956. First edition in German.
Neatly inked name inside front cover, otherwise a fine copy in a very good(+) slightly soiled dust wrapper.