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  • Optics: glass tubes (right) and Leeuwenhoek's first microscope (left) Photograph.
  • An old man trying on spectacles at a street vendor's optical shop. Woodcut by J. Amman, 1568.
  • The workshop of the spectacle maker and examples of his craft. Line engraving by ÆB.
  • An allegorical monument to Sir Isaac Newton and his theories on prisms. Line engraving by L. Desplaces after D. M. Fratta after G.B. Pittoni, D. Valeriani and G. Valeriani.
  • An allegorical monument to Sir Isaac Newton and his theories on prisms. Line engraving by L. Desplaces after D. M. Fratta after G.B. Pittoni, D. Valeriani and G. Valeriani.
  • John Tyndall demonstrating a fog-horn to Queen Victoria and her entourage. Wood engraving by T. B. Wirgman, c.1876.
  • Sir Isaac Newton (?) showing an optical experiment to an audience in his laboratory. Wood engraving by Martin after C. Laverie.
  • An Optometer on a pillar stand
  • An Optometer on a pillar stand
  • An Optometer on a pillar stand
  • An Optometer on a pillar stand
  • Case containing leather rimmed metal bridged glasses.
  • Eye-glasses and case.
  • A man going on holiday to the tropics; representing sex tourism as a risk for AIDS. Colour lithograph, 199-.
  • Astronomy: a large aerial (tubeless) telescope, in use by an astronomer. Engraving, 1757, after Ph. de La Hire.
  • Snell, A practical guide to the examination
  • Zebrafish eye development
  • Fly head
  • Ocular leprosy: examination of the eye
  • A diagram to show the principle of Helmholtz's ophthalmoscope. Pen and ink drawing.
  • Greenfly eye, SEM.
  • Cells and organisms, as seen through a microscope: twenty figures. Lithograph by L. Aldous, 1846.
  • Chemistry: a tracking burning-glass and details. Engraving by A. Bell.
  • Urinary calculi: fourteen examples. Chromolithograph by West Newman & Co. after L. Aldous, ca. 1888.
  • Calculi: twelve examples, including a uric acid calculus from the kidney. Chromolithograph after L. Aldous, ca. 1888.
  • Calculi: twelve examples, including uric acid and lime calculi. Chromolithograph after L. Aldous, ca. 1888.
  • Urinary calculi: fourteen examples. Chromolithograph by West Newman & Co. after L. Aldous, ca. 1888.
  • Canine retina: early cataract formation
  • Compound microscope by Pritchard, 1825-50.
  • Calculi: eight examples, including uric acid calculi. Chromolithograph after Scharf and L. Aldous, ca. 1888.