1. The ninth Bridgewater treatise : a fragment Title: The ninth Bridgewater treatise : a fragment Date: MDCCCXXXVIII [1838] Author: Babbage, Charles, 1791-1871. Collecting Area: Rare Books
2. On the economy of machinery and manufactures. Title: On the economy of machinery and manufactures. Date: 1832. Author: Babbage, Charles, 1791-1871. Collecting Area: Rare Books Call number: TJ 153 B12 LOCAL