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‘Abnormal’ Interference or Polarisation Pattern on Calcite Spar
National Science and Media Museum
Object number: 1923-1513/2
Dr. Kelley Wilder , 8 June 2018, Observing by Polarisation, The Talbot Catalogue Raisonné - blog (Accessed: 8 June 2018)
In 1854, William Crookes exhibited ‘Photographic Copies of the Phaenomena of Polarised Light in Crystals’ at the London Photographic Society.