@misc{indiciae6927a968cde4,
  title = {Correspondence : Gray (Asa) and Engelmann (George), 1841-1883 — Illustration, 1877 2 / Jun 09},
  year = {1877},
  url = {https://www.biodiversitylibrary.org/page/42780076},
  note = {Source identifier: page-42780076}
}