Forms of miners' safety lamp Product:Framed picture 22nd September 1988

22nd September 1988

A similar richly patterned drape appears behind

four views: top left

With two additional views of Venus outside the solar disc

The three figures at the base represent Britain

Forms of miners' safety lamp Product:Framed picture 22nd September 1988Plate 5 from the paper 'Some new experiments and observations on the combustion of gaseous mixtures, with an account of a method of preserving a continued light in mixtures of inflammable gases and air without flame', by Humphry Davy, Philosophical Transactions of the Royal Society, vol. 107 (1817), pp. 77 85. Whole views and details of safety lamps including Davy's platinum wire refinements. Original: ink on paper. 1817