'Cuprum arseniatum' Size:S: 36 x 28cm ' The plate is inscribed:

' The plate is inscribed: 'May

Original is oil on canvas 172

it was sometimes referred to as 'Tradescant's Ark'

McNeil (Colts trainer) Scott

'Cuprum arseniatum' Size:S: 36 x 28cm ' The plate is inscribed:Specimen termed 'Arseniate of copper' with two details of crystals. Plate 93 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 beautiful specimen was lent me by my good friend Philip Rashleigh, Esq., of Menabilly. It comes from Gwenap' [Gwennap, in Cornwall]. The plate is inscribed: 'Octr. 1 1804.