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Scientific American

April 1, 1942

1 min read

Telescoptics, April 1942

A Monthly Department for the Amateur Telescope Maker

By Albert G. Ingalls

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This article was originally published with the title “Telescoptics” in Scientific American Magazine Vol. 166 No. 4 (April 1942), p. 214
doi:10.1038/scientificamerican0442-214

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