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

Needham/NRI2/SCC6/24 contains:
<-- See earlier
25	Letter from Dr. André W. Sleeswyk of Gronigen, Holland, about entering the Rolex prize [with his model of the steelyard clepsydra]
26	Copy of a letter from John Combridge of Ilford, Essex to Dr. A. W. Sleeswyk of Gronigen, Holland, about the construction of the steelyard clepsydra
27	Letter from Dr. André W. Sleeswyk of Gronigen, Holland, about John Combridge's suggestions for an alternative reconstruction of the Chinese steelyard clepsydra
28	Letter from Dr. André W. Sleeswyk of Gronigen, Holland, about problems relating to his reconstruction of the steel-yard clepsydra, and related documents
29	Copies of 2 letters from John Combridge of Ilford, Essex, to Dr. A. W. Sleeswyk of Groningen, Holland, about the interpretation of Chinese texts for the reconstruction of the steelyard clepsydra
30	Letter from Dr. André W. Sleeswyk of Gronigen, Holland, about the design of his reconstruction of the Chinese steelyard clepsydra, and related documents
31	Letter from Prof. A. Rupert Hall of Imperial College of Science and Technology, London, about the publication of Dr. André W. Sleeswyk's paper 'The Celestial River: A Reconstruction' in 'History of Technology, 1978'
32	Typescript headed 'Chinese Steelyard Clepsydra: (Provisional revised translation of the description in 'Guo-shi zhi', see J. Needham 'Heavenly Clockwork' pp.90-94)'
33	Photocopy of a diagram showing the transmission system of the Kai-Feng Clock of A.D. 1088
34	Copies of 2 letters from John Combridge of Ilford, Essex, to Richard Watanabe of Ontario Science Centre, Canada, about Watanabe's work on a reconstruction of an astronomical clock tower
35	Cutting of a 'Guardian' article by Anthony Tucker entitled 'Just a second..you mean the clock's gone wrong' about the adding of an extra second to a day in order to regulate time
See later -->