1919-1928 Three papers in one. 111 p. [23, 8, 4], 2 plates, boards, author/title written on spine. Library stamp and Ex libris of Cor Karnekamp.Three papers (one in six parts) combined. Written by the German palaeontologist and malacologist Franz Gottschick (1865-1927). All with a stamp of Dr. E. Baumberger, Basel, who, presumably, had all parts bound together. Ernst Baumberger (1866-1935) was a Swiss palaeontologist, botanist and topographer.