1. An inquiry into the alleged tendency of the separation of convicts, one from the other, to produce disease and derangement Author(s): Packard, Frederick A. (Frederick Adolphus), 1794-1867 Publication: Philadelphia : Biddle, 1849 Subject(s): Prisons -- organization & administrationSocial Isolation
2. Solitude considered with respect to its influence upon the mind and the heart Author(s): Zimmermann, Johann Georg, 1728-1795 Publication: New-London [Conn.] : Printed by Cady and Eells, 1806 Subject(s): Social Isolation