@misc{indiciaecb677b7b2e3b,
  title = {Correspondence : Caspary (Robert) and Engelmann (George), 1857-1877 — Illustration, May 29 / 1858 2},
  year = {1858},
  url = {https://www.biodiversitylibrary.org/page/42758487},
  note = {Source identifier: page-42758487}
}