Admission ticket for lecture. One copy is filled in with the date April 25, 1800. Both are initialed by Barton. Immediately after returning from medical studies abroad in 1789, Barton became professor of natural history and botany at the University of Pennsylvania. In 1795 also assumed the responsibilities of the materia medica chair.; See also Goodman #188 and #188a.
Admission ticket for lecture. Immediately after returning from medical studies abroad in 1789, Barton became professor of natural history and botany at the University of Pennsylvania. In 1795 also assumed the responsibilities of the materia medica chair.; See also Goodman #187 and #188a.
Admission ticket for lecture filled in for April 22nd, 1806 and initialed by Barton. Immediately after returning from medical studies abroad in 1789, Barton became professor of natural history and botany at the University of Pennsylvania. In 1795 also assumed the responsibilities of the materia medica chair.; See also Goodman #187 and #188.
