M'Mahon, author of American gardener's calendar which was republished in eleven editions, was entrusted by Thomas Jefferson with the seeds brought back from the Lewis and Clark Expedition.; A fragment, equaling approximately one-half of the original broadside.
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.
Lists the ten children of this famed American botanist-explorer and nurseryman, at least two of whom followed their father in choice of vocation.; Clipping
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.