Historical Photographs of China reference for this set: Nh01. Szechuan (Sichuan) Province 四川省.
Manufacturing insecticide at the Szechuan
Agricultural Experiment Station (Si chuan sheng nong ye gai jin suo
四川省農業改進所), Chengtu (Chengdu) 成都
Photographs from the collection may be reproduced only with written permission. For permissions, contact the Librarian, East Asian History of Science Library, Needham Research Institute. Further information about the library and the ‘Joseph Needham Photographs – Wartime China, 1943-1946’: http://www.nri.cam.ac.uk/JN_wartime_photos/home.htm