27 June 1667 – 3 July 1667

I went to Chatham, and thence to view not only what mischief the Dutch had done; but how triumphantly their whole fleet lay within the very mouth of the Thames, all from the North Foreland, Margate, even to the buoy of the Nore—a dreadful spectacle as ever Englishmen saw, and a dishonor never to be wiped off! Those who advised his Majesty to prepare no fleet this spring deserved—I know what—but— Here in the river off Chatham, just before the town, lay the carcase of the "London" (now the third time burnt), the "Royal Oak," the "James," etc., yet smoking; and now, when the mischief was done, we were making trifling forts on the brink of the river. Here were yet forces, both of horse and foot, with General Middleton continually expecting the motions of the enemy's fleet. I had much discourse with him, who was an experienced commander, I told him I wondered the King did not fortify Sheerness and the Ferry; both abandoned.

Called upon my Lord Arlington, as from his Majesty, about the new fuel. The occasion why I was mentioned, was from what I said in my Sylva three years before, about a sort of fuel for a need, which obstructed a patent of Lord Carlingford, who had been seeking for it himself; he was endeavoring to bring me into the project, and proffered me a share. I met my Lord; and, on the 9th, by an order of Council, went to my Lord Mayor, to be assisting. In the meantime they had made an experiment of my receipt of houllies, which I mention in my book to be made at Maestricht, with a mixture of charcoal dust and loam, and which was tried with success at Gresham College (then being the exchange for the meeting of the merchants since the fire) for everybody to see. This done, I went to the Treasury for £12,000 for the sick and wounded yet on my hands. Next day, we met again about the fuel at Sir J. Armourer's in the Mews.