Amethyst under polarized light Size:S: 36 x 28cm Felice Nazzaro driving through Pettralia

Felice Nazzaro driving through Pettralia Sottana in a Fiat

star of Hithcock's 1963 classic "The Birds"

Col Dalmahoy in a remarkable wig makes a pass at a young woman

From Moses Pitt's The cry of the oppressed

View of Clare Market at the back of Portugal Row

Amethyst under polarized light Size:S: 36 x 28cm Felice Nazzaro driving through PettraliaSixteen figures showing specimens of amethysts viewed under polarized light and exhibiting veined structures. Brewster notes in his text: 'The observations are the result of an immense variety of experiments, which accidental circumstances put it in my power to make upon this interesting mineral. Having access to whole bagfuls of amethystine pyramids from the Brazils, in the possession of Mr Alexander, lapidary in Edinburgh, I have examined some