Peking natural history bulletin, Vol. 12, part 4, June 1938 [cover title]

Bejing: The Peking Society of Natural History and Yenching University, 1938. 8vo, pp. 253-351, [1]; text illustrations and three plates; printed paper wrappers; wrappers chipped, Conn. State Library stamp on upper wrapper, text clean and sound, good. With articles on modern physics and its bearing on biological theory, the blood groups of Yenching students, Isoparorchis in fishes, cultivation of mushrooms in North China, mosquitoes in China, and stoneflies.