@misc{indiciaee7888e47b099,
  title = {Correspondence : Gray (Asa) and Engelmann (George), 1841-1883 — Illustration, 1850 2 / Apr 24},
  year = {1850},
  url = {https://www.biodiversitylibrary.org/page/42127708},
  note = {Source identifier: page-42127708}
}