@misc{indiciaeb52c04816ec1,
  title = {Laboratory arts; a teacher's handbook dealing with materials and tools used in the contruction, adjustment, and repair of scientific instruments — Illustration, Page 40},
  year = {1908},
  url = {https://www.biodiversitylibrary.org/page/18702650},
  note = {Source identifier: page-18702650}
}