A copy of the paper was sent to each house affected by its proposals, every householder agreed to pay his sixpence, and the sense of comfort experienced by the entire population of Philadelphia in the more commodious use of the market prepared their minds for the bill which Franklin later introduced into the Assembly providing for the paving of the whole city. He was on the point of embarking on his second voyage to England when this was done, and the bill was not passed until after he was gone, and then with an alteration in his method of assessing the paving cost which his judgment did not deem an improvement; but the bill as passed contained a further provision for lighting as well as paving the streets of Philadelphia which he did deem a great improvement. The merit of first suggesting the hospital Franklin is studious to tell us, though ascribed to him, was due to Dr. Bond. So likewise he is quick to admit that the honor of giving the first impulse to municipal lighting in Philadelphia did not belong to him, as had been supposed, but to John Clifton, who had placed a private lamp at his own door. Franklin simply followed Clifton's example; but, when the city began to light its streets, his fertile mind did bring forward a novel idea which proved a highly useful one. Instead of the globes imported from London which became so black and opaque from smoke for lack of air, when the lamps were lighted, that they had to be cleaned every day, and which, moreover, were totally wrecked by a single blow, he suggested that the coverings for the city lamps should be composed of four flat panes, with a long funnel above and inlets below for the free circulation of air. The result was a covering that remained untarnished until morning and was not involved in complete ruin by a single fracture.