@misc{indiciaee48cde2d5c25,
  title = {The microscope : its history, construction, and application, being a familiar introduction to the use of the instrument and the study of microscopical science — Illustration, Page 39},
  year = {1856},
  url = {https://www.biodiversitylibrary.org/page/21474049},
  note = {Source identifier: page-21474049}
}