@misc{indiciaeff375ce356a4,
  title = {A new system of scientific procedure; being an attempt to ascertain, develop, and systematise the general methods employed in modern enquiries at their best — Illustration, BHL page 23759722},
  year = {1921},
  url = {https://www.biodiversitylibrary.org/page/23759722},
  note = {Source identifier: page-23759722}
}