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52 results
  • Optics: crystals exhibiting interference colours. Colour mezzotint [?] by R.H. Digeon, ca. 1883, after J. Silbermann.
  • Cells crawling across crystals
  • Kidney stone
  • Artificial sweetener saccharin crystals, LM
  • Salbutamol crystals
  • Chemistry: various crystalline substances. Coloured engraving.
  • Chemistry: various crystalline substances. Coloured engraving.
  • Artificial sweetener saccharin crystals, LM
  • Dried buffer crystals, LM
  • Cells crawling across ceramic crystals
  • Vanillin crystals, LM
  • Benzimidazole crystals
  • Human saliva displaying ferning. During the fertile phase of a woman's menstrual cycle an oestrogen surge causes salt crystals to appear in the saliva. When viewed under the microscope the crystalline salt structure resembles fern leaves and can be used as an indication of a woman's increased chances of conceiving at this time.
  • Chemistry: various crystalline substances. Engraving by Prevost after L.J. Goussier.
  • Geology: various uncut semi-precious stones. Coloured lithograph by H. Sowerby after himself, 1851.
  • Kidney stone
  • Thyroid nodule smear showing hematoidin crystals
  • Kidney stone
  • Chemistry: various crystalline substances. Coloured engraving.
  • Urea crystals
  • Salbutamol crystals
  • Kidney stone
  • Optics: crystals exhibiting interference colours. Colour mezzotint by R.H. Digeon, ca. 1868, after J. Silbermann.
  • Kidney stone
  • Benzimidazole crystals
  • Chemistry: geometrical representations of crystalline substances. Engraving by J. Pass, 1802, after H. Lascelles.
  • Cocaine crystals
  • Human saliva displaying ferning. During the fertile phase of a woman's menstrual cycle an oestrogen surge causes salt crystals to appear in the saliva. When viewed under the microscope the crystalline salt structure resembles fern leaves and can be used as an indication of a woman's increased chances of conceiving at this time.
  • Cystine
  • Hippuric acid crystals