[ ][15]"The Convicts and their Children." By Berthold Auerbach. Translated by Charles T. Brooks. Leisure Hour Series. New York: H. Holt & Co.
[ ][16]"Notes on Assaying and Assay Schemes." By Pierre de Peyster Ricketts, E.M. New York: The Art Printing Establishment.
[ ][17]"Acoustics, Light and Heat." By William Lees, M.A. With 200 illustrations. New York: G. P. Putnam's Sons.