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Scientific American, Vol. 75, No. 4 (July 1896) (1896)

leaf 41

An illustration from Scientific American, Vol. 75, No. 4 (July 1896), 1896, leaf 41
e way of developing the refracting telescope. some excellent reflecting telescopes, and, like Herschel, Notwithstanding Newton's dictum that it was useless advent of these twin ships to the transatlantic route made many interesting observations with instruments may be taken as an earnest of the… … cessfully made optical glass disks up to fifteen length, REFLECTING TELESCOPE. © 1896 SCIENTIFIC AMERICAN, INC.

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