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Royal Navy


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Papers on optics and navigation, 1884 - 1900

Reference Code: GBR/0180/RGO 7/233
Scope and Contents Undated ink drawing of Fraunhofer's solar spectrum.General correspondence concerning optics, relating mainly to telescopes, 1884-1894, including two copies of the Admiralty Telescope Contract, 1884; a copy of Patent No. 17994 of 1892: 'Improvements in Compound Object Glasses for Telescopes' by H.D. Taylor; W.J. Watson on increasing the power of a telescope; D.F. Webster on the reflection of the Moon in a mirror; Ralf Sadler on improvements to object glasses; and W.H. Duncan on water...
Dates: 1884 - 1900
Conditions Governing Access: From the Management Group: Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (

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  • Subject: Optics X