@misc{indiciae78291ea567e7,
  title = {Correspondence : Gray (Asa) and Engelmann (George), 1841-1883 — Illustration, 1861 2 / Jan 07},
  year = {1861},
  url = {https://www.biodiversitylibrary.org/page/42674331},
  note = {Source identifier: page-42674331}
}