Cornell University has scans of Scientific American

As part of Cornell Uniersity’s Making of America, they have scans of Scientific American from 1846-1869. Very nice, albeit with their rather obtuse and probably meaningless usage restrictions.

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Here’s the full page of an issue which describes Lord Rosse’s telescope (with the illustration below). Oops. That was a link to the gifcache. You’ll have to dig to find it again.

Lord Rosse's Telescope