@misc{indiciae0a642427f575,
  title = {Correspondence : Gray (Asa) and Engelmann (George), 1841-1883 — Illustration, 1863 2 / Jun 06},
  year = {1863},
  url = {https://www.biodiversitylibrary.org/page/42648424},
  note = {Source identifier: page-42648424}
}