Janus: Papers of Joseph Needham as a historian of Chinese science, technology and medicine

Needham/NRI2/2/4/4 contains:
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15	Correspondence with R. Whymant of Luton, Bedfordshire, about translations from a Korean work on history of science and technology by Chon Sangun, and other matters
16	Letter from Francis Maddison of the Museum of the History of Science, Oxford, about work on 'Hall of Heavenly Records', and other matters, and copy of Joseph Needham's reply
17	Letter from Derek J. de Solla Price of Yale University, U.S.A., about a 17th century Korean clock, and related documents
18	Letter from Francis Maddison of the Museum of the History of Science, Oxford, about John Combridge's commentary on the Seoul armillary clock
19	Letter from Jeon Sang-Woon of Seoul, South Korea, about his work on the history of science in Korea
20	Letter from Derek J. de Solla Price of Yale University, U.S.A., about a delay in his work in the field of Korean clockwork
21	Letter from Derek J. de Solla Price of Yale University, U.S.A., about work on Korean clockwork, and other matters
22	Copy of a letter from Derek J. de Solla Price of Yale University, U.S.A., to Gari Ledyard of Berkeley, California, U.S.A., about photographs of a clockwork orrery held at the Museum of the University of Seoul, South Korea
23	Copy of a letter from Joseph Needham to Derek J. de Solla Price of Yale University, U.S.A., about the study of equipment at the Korean Roayl Observatory
24	Copy of a letter from Joseph Needham to Francis Maddison of the Museum of the History of Science, Oxford, inviting him to collaborate on a work on the instruments at the Korean Royal Observatory
25	Copy of a letter from Joseph Needham to Gari Ledyard, asking for his help to obtain photographs of the Yi dynasty astronomical clock preserved in the National Museum, Seoul, South Korea, and related notes
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