Title: Negertypen des schwarzen Erdteil Photographer(s): H.A. Bernatzik, Georges Specht and Leon Poirier (photographs were taken from various other books such as La croisière noire Designer(s): – Writer(s): M. Gehrts Schomburgk,  Publisher: Orell Füssli Verlag, Zürich 1930 (published by Dr. Emil Schaeffer in the series Schaubücher 17) Pages: 16 textpages, 65 photographic plates Language: German ISBN: – Dimensions: 13 x 19.5 cm Edition: – Country: Various countries