Appears to be an incomplete, possible unpublished manuscript for an American materia medica. cf. Theodore W. Jeffries, "Barton's unpublished materia medica" in Pharmacy in history, v. 17, no. 2, p. 69- 71. Consists of 8 volumes of holograph writings pasted onto pages of the volumes, with chapter and section numbers, and catchwords.
Wisconsin has only the parts numbered 5, 7, 9-10, 29-32.