Letters were originally printed separately in the Imperial Magazine., Goldsmiths'-Kress no. 26510.1., Reproduction of the original from the Goldsmiths' Library, University of London. Reproduced courtesy of World Microfilms Publications., and AVAILABLE ONLINE TO AUTHORIZED PSU USERS.
Electronic reproduction. Farmington Hills, Mich. : Gale, 2009. Available via the World Wide Web. Access limited by licensing agreements.