Subject: The Times Lit. Supp. 11.1.1980. /1 Article, The Guns of Khaifeng-fu by Joseph Needham. Original /2 Handout from Needham's lecture 11.1979. Diagram illustrates the development of Gunpowder weapons. photocopy
Description: Multiple rocket arrow launcher (Chhun pao heng pen chien, Horizontally raining pack of leopards arrow) from 'Wu pei chih'
