3/4 portrait of Dr James Beattie, wearing doctorate gown, 'Essay on Truth' under left arm. Truth as an Angel holding balance plunging Scepticism, Sophistry, Infidelity (Voltaire, Hume, Gibbon) into darkness. Painted 1773 in London during Beattie's…
piece of metal on the end of a metal rod. The metal rod has a brass ball on the other end. The device is placed on metal block and heated at one end. When left to cool it moves slightly emitting a rocking sound.