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  • Optics: diagrams of reflection and refraction of light. Coloured engraving by J. Pass, 1819.
  • Optics: diagrams of reflection and refraction of light. Coloured engraving by J. Pass, 1820.
  • Optics: diagrams of reflection and refraction of light. Coloured engraving by J. Pass, 1820.
  • Optics: a micrometer, for range-finding [?], with diagrams of its operation. Engraving by Barlow.
  • Optics: diagrams of reflection and refraction of light. Coloured engraving by R. & E. Williamson, 1820.
  • Optics: diagrams of reflection and refraction of light. Coloured engraving by R. & E. Williamson, 1820.
  • Diagrams on perspective and optics in Po-wu hsin-pien: Part 1: ch'u-chi (textbook on natural sciences)
  • A sheet showing optical instruments, eye examinations, diagrams to show the effect of lenses and diagrams of the eye with a numbered key. Wood engraving.
  • A sheet showing optical instruments, eye examinations, diagrams to show the effect of lenses and diagrams of the eye with a numbered key. Wood engraving.
  • A sheet showing optical instruments, eye examinations, and diagrams of the eye surgery with a numbered key. Wood engraving.
  • A sheet showing optical instruments, eye examinations and anatomical diagrams of the eye with a numbered key. Wood engraving.
  • A mine: cross-section of a machine for extracting water from the pit and three optical diagrams. Etching by T. Jefferys.
  • Detail: Illustration showing two prisms.
  • A diagram to show the principle of Helmholtz's ophthalmoscope. Pen and ink drawing.