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  • Many problems in industry, commerce, science and medicine can be solved by means of colour and colour-measuring methods : a Lovibond comparator and a set of colour standards may be the answer to your problems / Tintometer Limited.
  • Optics: crystals exhibiting interference colours. Colour mezzotint [?] by R.H. Digeon, ca. 1883, after J. Silbermann.
  • A crowned woman in red holding a rose-topped caduceus; she is suspended in a circle of water; a cherub blows wind from above; representing a stage in the process of alchemy. Coloured etching, ca. 18th century.
  • Men vainly seeking alchemical 'white' (mercurial) water in the ground and in trees. Coloured etching after etching, ca. 17th century.
  • Many problems in industry, commerce, science and medicine can be solved by means of colour and colour-measuring methods : a Lovibond comparator and a set of colour standards may be the answer to your problems / Tintometer Limited.
  • A crowned alchemical flask containing a young king, dressed in red, representing the culmination of the alchemical process. Watercolour painting by E.A. Ibbs.
  • A moon above a queen dressed in blue, and a sun above a king dressed in red; representing two alchemical principles: the dissolving 'lac virginis' (mercury) and the coagulating masculine principle (sulphur). Watercolour painting by E.A. Ibbs.
  • A red-faced sun rises above a city; stunted trees stand in the foreground; representing either the culmination of the alchemical work or the star of hope that inspires the alchemist through his tribulations. Watercolour painting by E.A. Ibbs.
  • Optics: spectra of various stars, including our sun. Coloured process print by Cassell.
  • A peacock in a crowned alchemical flask; representing the stage in the alchemical process when the substance breaks out into many colours. Watercolour painting by E.A. Ibbs.
  • A red-faced sun rises above a city; stunted trees stand in the foreground; representing either the culmination of the alchemical work or the star of hope that inspires the alchemist through his tribulations. Watercolour painting by E.A. Ibbs.
  • A queen dressed in blue, representing mercury, in a crowned alchemical flask. Watercolour painting by E.A. Ibbs.
  • Optics: crystals exhibiting interference colours. Colour mezzotint by R.H. Digeon, ca. 1868, after J. Silbermann.
  • Many problems in industry, commerce, science and medicine can be solved by means of colour and colour-measuring methods : a Lovibond comparator and a set of colour standards may be the answer to your problems / Tintometer Limited.
  • 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.
  • A three headed monster in an alchemical flask, representing the composition of the alchemical philosopher's stone: salt, sulphur, and mercury. Watercolour painting by E.A. Ibbs.
  • Three men ride through the sky on black, red and white lions (colours of the alchemical process); beneath, men lay sprawled among dismembered limbs. Coloured etching after etching, ca. 17th century.
  • 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.
  • Optics: spectra of various substances. Colour aquatint (?) by R.H. Digeon, ca. 1868.
  • A black sun with a face descends behind the horizon of a marshy landscape; representing the state of putrefaction in alchemy. Watercolour painting by E.A. Ibbs.
  • Men vainly seeking alchemical 'white' (mercurial) water in the ground and in trees. Coloured etching after etching, ca. 17th century.
  • Optics: a colour-circle, after M. E. Chevreul. Colour aquatint (?) by R.H. Digeon, ca. 1868.
  • The Hermetic androgyne; representing the stages of the alchemical Work in One. Watercolour painting by E.A. Ibbs.
  • Optics: spectra of various pigments, compared with that of our Sun. Coloured process print by Cassell.
  • Many problems in industry, commerce, science and medicine can be solved by means of colour and colour-measuring methods : a Lovibond comparator and a set of colour standards may be the answer to your problems / Tintometer Limited.
  • A black man with a red head and right arm emerges from a foul stream into a landscape where a winged woman is waiting for him with a red garment; representing the transformations of the alchemical work from corruption to perfection. Watercolour painting by E.A. Ibbs.
  • Experiments and considerations touching colours. First occasionally written among some other essays, to a friend ; and now suffer'd to come abroad as the beginning of an experimental history of colours / By the Honourable Robert Boyle.
  • A black sun with a face descends behind the horizon of a marshy landscape; representing the state of putrefaction in alchemy. Watercolour painting by E.A. Ibbs.
  • The Hermetic androgyne; representing the stages of the alchemical Work in One. Watercolour painting by E.A. Ibbs.
  • Optics: crystals exhibiting interference colours. Colour mezzotint [?] by R.H. Digeon, ca. 1883, after J. Silbermann.