'Silex quartzum' Size:Large: 7 x 5in From a specimen grown at

From a specimen grown at Chelsea Physic Garden

Penlington Place later became Hercules Road

A BMW 325IX during the Chamonix Ice Race

To the Queen

'Silex quartzum' Size:Large: 7 x 5in From a specimen grown atEight specimens of flint pebbles, generally split or sectioned, from various locations including from near London and from Norwich in Norfolk. Plate 88 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 'Flint pebbles, so universally known in the vicinity of London, are not so well known everywhere The forms