Scope and Contents The letter is dated 17 Dec. 1945 and was found with his book in the Needham Research Institute Library. The poem written by Shi Sheng-han, mentioned by Joseph Needham on page 42 of Science Outpost, is with the loose items now on the Cambridge University Digital Library reference NRI2/5/12/5/47. The file includes: - Photocopy of 'A preliminary survey of the book Chhi Min Yao Shu: An agricultural encylopaedia of the 6th century' by Shih Sheng-han. This is a draft translation made by...