@misc{indiciae719b91fa97c3,
  title = {Correspondence : Gray (Asa) and Engelmann (George), 1841-1883 — Illustration, 1860 2 / Oct 30},
  year = {1860},
  url = {https://www.biodiversitylibrary.org/page/42673786},
  note = {Source identifier: page-42673786}
}