Berlin: Im Verlag Ullstein, .
First edition. 5 pages advertisements at back for the series Wege Zum Wissen, illustrations in the text. 122pp. 1 vols. 12mo. Original cloth-backed green boards. Binding darkened, some rubbing, text browned, bookplates,else a very good copy. Item #28251
Number 85 in the Wege Zum Wissen series. The author was a Professor at the University of Berlin.