Contains five signed testimonials to the efficacy of the sassafras oil, dated in January and February, 1792.
"N.B. Obengemeldetes Sassafras-Oel ist zu haben bey Dr. Johannes Rose in Lancaster."
Electronic text and image data. [Chester, Vt. : Readex, a division of Newsbank, Inc., 2002-2004. Includes files in TIFF, GIF and PDF formats with inclusion of keyword searchable text. (Early American imprints. First series ; no. 46564).