@misc{indiciae72a610f358e6,
  title = {Correspondence : Gray (Asa) and Engelmann (George), 1841-1883 — Illustration, 1869 2 / Jun 17},
  year = {1869},
  url = {https://www.biodiversitylibrary.org/page/42724005},
  note = {Source identifier: page-42724005}
}