Glass harmonica Franklin and a fellow of the Royal Society, extended the experiments of Pockrich, contriving a set of glasses better tuned and easier to play. During the same decade, Christoph Willibald Gluck also attracted attention playing a similar instrument in England. Benjamin Franklin invented a radically new arrangement of the glasses in 1761 after seeing water-filled wine glasses played by Edmund Delaval at Cambridge in England in May 1761. Franklin worked with London glassblower Charles James to build one, and it had its world premiere in early 1762, played by Marianne Davies. Writing to his friend Giambatista Beccaria in Turin, Italy,
Paris in the 18th century polluted since the Middle Ages by the discharge of human and animal waste, the dumping of chemicals by the tanneries, and by the decomposition of bodies in the many cemeteries not far from the river. In the 18th century the Lieutenant General of Police banned taking drinking water from between the present Quai des Celestins and the modern quai de Louvre. Average Parisians depended upon the fountains around city, which were not numerous, did not run at night, were crowded, and required a payment for each bucket taken. Parisians either collected water themselves, sent a servant, or depended upon water