Physico-mechanical experiments on various subjects, containing an account of several surprizing phaenomena touching light and electricity. Producible on the attrition of bodies. With many other remarkable appearances, not before observ'd. Together with the explanations of all the machines, (the figures of which are curiously engrav'd on copper) and other apparatus us'd in making the experiments. To which is added a supplement containing several new experiments not in the former editions

by Francis Hauksbee