00567cam a2200181 4500 100347522 TxAuBib 20070420120000.0 060101s2006||||||||||||||||||||||||eng|u 9666 Project Gutenberg PGUSA eng TxAuBib Scientific American Supplement, No. 497, July 11, 1885 [Gutenberg] / by Various. Project Gutenberg, 2006. Project Gutenberg. Freely available. Electronic text. Science -- Periodicals. http://www.gutenberg.org/license Rights