@misc{indiciae28b3dcd6b11c,
  title = {The Darwin reading notebooks (1838-1860).},
  author = {P J Vorzimmer},
  year = {1977},
  doi = {10.1007/bf00126097},
  url = {https://pubmed.ncbi.nlm.nih.gov/11615636/},
  note = {Source identifier: 11615636}
}