@misc{indiciaec3fe73eccf7a,
  title = {A text-book of human physiology including histology and microscopical anatomy, with special reference to the requirements of practical medicine — Illustration, Page 506},
  year = {1889},
  url = {https://www.biodiversitylibrary.org/page/30999831},
  note = {Source identifier: page-30999831}
}