Author
List, Friedrich, 1789-1846
Austin, Benjamin, 1752-1820
1
Colwell, Stephen, 1800-1872
1
Ingersoll, Charles Jared, 1782-1862
1
Jefferson, Thomas, 1743-1826
1
Madison, James, 1751-1836
1
Matile, G.-A. 1807-1881,
1
Pennsylvania Society for the Encouragement of Manufactures and the Useful Arts
1
Richelot, Henri, 1811-1864,
1