@misc{indiciaead40624d7f10,
  title = {Correspondence : Gray (Asa) and Engelmann (George), 1841-1883 — Illustration, May 20 / 1875 2},
  year = {1875},
  url = {https://www.biodiversitylibrary.org/page/42762075},
  note = {Source identifier: page-42762075}
}