Chappe d'Auteroche, abbé. Voyage en Sibérie, vol. 1. Paris: Debure, pere, 1768. The covers of this volume were detached. In order to provide support for the book during exhibition, the covers were reattached by a method called board…
Electro-plating with a hand generator, owing to absence of mains current, at the Scientific Apparatus Supply Service factory, Chengdu, Sichuan, 1943. Used by permission.
A newspaper on popular science displayed outside the Kansu Science Education Institute. Photographer: Joseph Needham, 1943. (photo provided by NRI) Used by permission.
Science for Youth one year anniversary issue reprinted in Minguo zhen xi duan kan duan kan (Short-lived and Ceased Periodicals from the Republic Era in Chongqing). Beijng. 2006. V. 4, p. 1923.