Description
'Petrowski'
Scene depicting the shooting of three members of the Highland Regiment (Black Watch)
a ground plan of the cathedral above and text in the central area
Coining press and dies from the Tower of London
Interior view of the Hall of Commerce
Catoptric microscope Benjamin Disraeli 'Petrowski'View of a microscope shown on a pedestal stand: with a section through the instrument, a scheme of its optical arrangement and details of the mirror based instrument. The microscope was inspired by the Newtonian reflecting telescope. From the manuscript paper 'An account of a catoptric microscope', by Robert Barker. Not signed. Royal Society Register Book Original, vol. 19 1734 1736, pp. 256 260. The paper was read before the Royal Society on 8
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