the undertaker, who to that purpose had, with no small charge, erected a water-mill at Hackney Marsh, known by the name of the Temple Mill, which mill very happily performed all parts of the work; and I have seen some of those guns on board the Royal Charles, a first-rate ship, being of a reddish colour, different either from brass or copper. I have heard some reasons of state assigned why that project was not permitted to go forward; but I omit them, because I have no good authority for them. After this we saw a floating-machine, to be wrought with horses, for the towing of great ships both against wind and tide; and another for the raising of ballast, which, as unperforming engines, had the honour of being made, exposed, tried, and laid by before the prince died. If thus we introduce it into the world under the conduct of that prince, when he died it was left a hopeless brat, and had hardly any hand to own it, till the wreck-voyage before noted, performed so happily by Captain Phips, afterwards Sir William, whose strange performance set a great many heads on work to contrive something for themselves. He was immediately followed by my Lord Mordant, Sir John Narborough, and others from several parts, whose success made them soon weary of the work. The project of the Penny Post, so well known and still practised, I cannot omit, nor the contriver, Mr. Dockwra, who has had the honour to have the injury done him in that affair repaired in some measure by the public justice of the Parliament. And, the experiment proving it to be a noble and useful design, the author must be remembered, wherever mention is made of that affair, to his very great reputation. It was, no question, a great hardship for a man to be master of so fine a thought, that had both the essential ends of a project in it (public good and private want), and that the public should reap the benefit and the author be left out; the injustice of which, no doubt, discouraged many a good design. But since an alteration in public circumstances has recovered the lost attribute of justice, the like is not to be feared. And Mr. Dockwra has had the satisfaction to see the former injury disowned, and an honourable return made, even by them who did not the injury, in bare respect to his ingenuity.