...100-inch Hooker disc for the Mt Wilson telescope, called 'the failure of the Melbourne reflector . . . one of the greatest calamities in the history of instrumental...of great reflecting telescopes, it has hindered the FIG. 5.5. Artist's impression of members of the public viewing the telescope. The ciuiiiiHi.il stream...

...mirrors never performed well again. I consider the failure of the Melbourne reflector [Ritchey writes]is to have been one of the greatest calamities in the...this type of instrument, so wonderfully efficient in photographic and spectroscopic work, for nearly a third of a century. The mounting and tube are...