Correspondence on mirrors and micrometers, 1912 - 1931
Scope and Contents
Correspondence relating to mirrors, micrometers and spectrophotometry, including the following material:
Correspondence with J. Cooke and Sons on a speculum mirror, 1912.
Correspondence with Troughton and Simms on a Duplex micrometer, 1910-1912.
Correspondence with the Cambridge Instrument Co. and the National Physical Laboratory on spectrophotometry, 1926-1930.
Correspondence concerning a new measuring micrometer for the Cookson Plates and a second micrometer, 1931.
Miscellaneous correspondence, 1929-1930, including letters on a prismatic astrolabe and on the sale of a transit instrument to the Helwan Observatory, Egypt.
- 1912 - 1931
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1 bundle(s) (1 bundle)
Language of Materials
Former / Other Reference
Finding aid date
- From the Series: Dyson, Frank Watson, Sir, 1868 - 1939 (Knight, astronomer) (Person)