@misc{indiciae110c2a8ac4b7,
  title = {Correspondence : Gray (Asa) and Engelmann (George), 1841-1883 — Illustration, Jun 24 / 1871 1},
  year = {1871},
  url = {https://www.biodiversitylibrary.org/page/42677222},
  note = {Source identifier: page-42677222}
}