00587cam a2200193 4500 106143928 TxAuBib 20080629120000.0 120628s2012||||||||||||||||||||||||eng|u 40101 Project Gutenberg PGUSA eng TxAuBib Hazen, Edward. Popular Technology; Volume 2 or, Professions and Trades [Gutenberg] / by Edward Hazen. Project Gutenberg, 2012. Project Gutenberg. Freely available. Electronic text. http://www.gutenberg.org/license Rights TXTLL