00567cam a2200181 4500 80090790 TxAuBib 20060718120000.0 050214s2005||||||||||||||||||||||||eng|u 15050 Project Gutenberg PGUSA eng TxAuBib Scientific American Supplement, No. 810, July 11, 1891 [Gutenberg] / by Various. Project Gutenberg, 2005. Project Gutenberg. Freely available. Electronic text. Science -- Periodicals. http://www.gutenberg.org/license Rights