@misc{indiciae72cd0b5fcd68,
  title = {Botany for young people: Part 2, How plants behave / Botany for young people: Part 2, How plants behave. : [Supplementary material in Charles Darwin's copy] — Illustration, BHL page 34071952},
  year = {1872},
  url = {https://www.biodiversitylibrary.org/page/34071952},
  note = {Source identifier: page-34071952}
}