jrcollins

John R. Collins

Photo published in JRASC, 1917.

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1899 Musson

A sketch of the Collins brothers' "Monoplane Achromatic Telescope", from Musson in Knowledge 1900 November 1, 252 (star on the right added for clarity)

 

NEW FORMS OF TELESCOPES.

{Achromatism} and other forms of optical instruments

To the Editor of

            Sir,

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RASC-AAVSO 1940 #4

Group photo, RASC-AAVSO meeting at DDO, 1940. An Image map with names is available. Frank Hogg appears in both photos!

Report & photo key: JRASC, 34, 224.

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