@misc{indiciae1098d6fe0c03,
  title = {Lessons on shells : as given in a Pestalozzian school, at Cheam, Surrey — Illustration, BHL page 20923708},
  year = {1842},
  url = {https://www.biodiversitylibrary.org/page/20923708},
  note = {Source identifier: page-20923708}
}