Scientific American, July 3, 1880, by Various 38482 [Full title: Scientific American, Vol. XLIII.--No. 1. [New Series.], July 3, 1880] [Subtitle: A Weekly Journal Of Practical Information, Art, Science, Mechanics, Chemistry, And Manufactures] [Link: http://www.gutenberg.org/3/8/4/8/38482 ] [Files: 38482.txt; 38482-8.txt; 38482-h.htm] Thanks to Juliet Sutherland, Lesley Halamek, and the Online Distributed Proofreading Team at http://www.pgdp.net David