Keywords: Royal Institution - Humphry Davy.jpg New Discoveries in Pneumatics Humphry Davy 1778-1829 lecturing at the Royal Institution Print by James Gillray http //www chemsoc org/networks/learnnet/periodictable/scientists/davy htm dead link 1802 Creator James Gillray PD because of age Royal Institution James Gillray Humphry Davy Benjamin Thompson PD-old-100 |