Calx carbonata tripe 15th May 1937

15th May 1937

Brunswick and East India Docks looking east with the River Lea in the middle distance and Perry's Masthouse on the right

'A Gentle Vegetarian'

left half-profile

Calx carbonata tripe 15th May 1937Specimen of calcium carbonate crystal, here termed 'crystallized carbonate of lime', showing optical effects. Plate 35 from British mineralogy: or coloured figures intended to elucidate the mineralogy of Great Britain, by James Sowerby, volume 1 (London, R. Taylor & Co., 1804). The accompanying text states that 'This fine yellowish crystal shows at the apex three polished faces the double refraction is seen, when held in certain directions, by the