@misc{indiciae4250070cc78b,
  title = {Micrographia : containing practical essays on reflecting, solar, oxy-hydrogen gas microscopes; micrometers; eye-pieces, \&c. \&c — Illustration, Page 190},
  year = {1837},
  url = {https://www.biodiversitylibrary.org/page/35099807},
  note = {Source identifier: page-35099807}
}