@techreport{WolffRobertsThomson2013, author = "Wolff, Andrew P and Roberts, Devin Thomas and Thomson, Sarah Elizabeth" title = "Online Index of Illustrations From Scientific American, 1859-1860, and the Geography of American Invention" school = "Worcester Polytechnic Institute" %address = "100 Institute Road, Worcester MA 01609-2280 USA" year = "2013" %month = "February" }