The iron man in industry; an outline of the social significance of automatic machinery H Social sciences (General)
Philadelphia and its manufactures: a hand-book exhibiting the development, variety, and statistics of the manufacturing industry of Philadelphia in 1857 H Social sciences (General)
The inventor of the numeral-type for China by the use of which illiterate Chinese both blind and sighted can very quickly be taught to read and write fluently H Social sciences (General)
