Calx carbonata Northallerton The one on the right

The one on the right is Derby

The Royal Society's museum collection

The BBC had commissioned the Beatles to write a song for the UK's contribution

In the distance is a ridge upon which a temporary astronomical observatory stands grouped around an existing small church tower

pictured visiting his German Regiment the First Dragoon Guards on his visit to Berlin

Calx carbonata Northallerton The one on the rightSpecimen 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