Monochromatic lamps and filtered spectra Sir John Musgrave spilling gravy over one of

spilling gravy over one of them while his attention is distracted by a woman with her child on his other side

and the city must surrender soon

The byline reads 'The Dawn of a New Motoring Era'

Eighteen swan marks issued by the Crown to landowners in the county of Lincolnshire

Sheriff 1837-8 standing in ceremonial robes

Monochromatic lamps and filtered spectra Sir John Musgrave spilling gravy over one ofFigures showing monochromatic lamps fuelled by alcohol diluted in water to produce a yellow flame (figures 1 3), with views of the effects on the spectrum created by filtering light through various types of coloured glass (figure 4 numbers 1 16). Plate 28 from the paper 'Description of a monochromatic lamp for microscopical purposes, &c. with remarks on the absorption of the prismatic rays by coloured media.', by David Brewster, originally published