Abstract
DURING two or three visits to Paris and Nice some years ago, I discussed with many French astronomers, whom I was privileged to count among my personal friends, the question of the large telescopes of the future. Among the conclusions come to, the first was that the glass industry was not in a position to grapple with astronomical requirements, and hence when reflectors of 8 or io feet diameter were talked of it was understood that they must be made of porcelain with a glass surface. Other conclusions were that the coudé mounting designed by M. Lœwy, and carried out so far as the optical parts were concerned by the brothers Henry, should be replaced with object-glasses of or about 25 inches by the use of a siderostat.
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LOCKYER, N. The Great Paris Telescope . Nature 61, 178–181 (1899). https://doi.org/10.1038/061178a0
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DOI: https://doi.org/10.1038/061178a0