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Scientific American

March 1, 1940

1 min read

Telescoptics, March 1940

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. 162 No. 3 (March 1940), p. 186
doi:10.1038/scientificamerican0340-186

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