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Cover of <a href="/wiki/Scientific_American" title="Scientific American">Scientific American</a>, the September <a href="/wiki/1848" title="1848">1848</a> issue. The image is available from <a href="/wiki/Cornell_University" title="Cornell University">Cornell University</a> Library: http://cdl.library.cornell.edu/cgi-bin/moa/pageviewer?root=%2Fmoa%2Fscia%2Fscia0004%2F&tif=00003.TIF&cite=http%3A%2F%2Fcdl.librar
(Cover of <a href="/wiki/Scientific_American" title="Scientific American">Scientific American</a>, the September <a href="/wiki/1848" title="1848">1848</a> issue. The image is available from <a href="/wiki/Cornell_University" title="Cornell University">Cornell University</a> Library: http://cdl.library.cornell.edu/cgi-bin/moa/pageviewer?root=%2Fmoa%2Fscia%2Fscia0004%2F&tif=00003.TIF&cite=http%3A%2F%2Fcdl.librar)
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