[1940] Two volumes (of three) only. Text in German. Volume One: xvi, 476pp, with black and white plate illustrations and numerous figures in text. Volume Two: 477-864pp, again with black and white plate illustrations and numerous figures in text. Both volumes uniformly bound in oatmeal linen with brown lettering front and spine. Top edges sprayed red. 4tos. Cloth is a little soiled and shelf worn, gently rounded at corners and spine ends. Fore and lower text block edges a little toned. Both volumes have an attractive bookplate of one E A Scheuermann on the front free endpaper, else internally neat, clean and tight.