@misc{indiciae1c9147e4c0db,
  title = {Correspondence : Gray (Asa) and Engelmann (George), 1841-1883 — Illustration, 1870 2 / Jun 05},
  year = {1870},
  url = {https://www.biodiversitylibrary.org/page/42720071},
  note = {Source identifier: page-42720071}
}