Miners' safety lamp Finish:Stretched Mr Worsley's school

Mr Worsley's school

View showing the 'Megatherium Mansion'

'Essence of Parliament'

you will see the most beautiful circles of colours that imagination can conceive

Miners' safety lamp Finish:Stretched Mr Worsley's schoolUnpublished illustrations, apparently intended for the paper 'On the fire damp of coal mines, and on methods of lighting the mines so as to prevent its explosion', by Humphry Davy, Philosophical Transactions of the Royal Society, vol. 106 (1816), pp. 1 22. A slip of paper with safety lamp designs attached to a single page of text (original pagination '21'), the latter endorsed 'London Novr. 9 1815'. Original: ink on paper. 1815