I Will thank you to present to theSociety of Antiquaries a drawing and explanation of a marble monument or tablet fixed in a wall on the North-west side of the Tower of London, and in the apartments of the Deputy Lieutenant, called the Council Chamber. It was erected, as appears from the inscription, by Sir William Wade, knight, Lieutenant of the Tower in the year 1608, evidently with a view of perpetuating the infamy of the conspirators concerned in the Gunpowder plot. It is composed of marbles of several colours; see the annexed plate, in which the different inscriptions are (slightly sketched, and referred to by the letters A. B. C. D. E. and figures 1. 2. 3. 4. in the following pages.