Foundation Stone of St. Mark's, Venice

In vol. xxvi. of the *Archæologia* is a paper by the late Mr. Douce, "On the foundation stone of the original church of St. Mark, at Venice," &c., accompanied by an engraving of the mutilated object itself, which also appears to have been submitted to the inspection of the Society of Antiquaries at the time the paper was read. The essay contains, in reality, very little information relating to the stone, and that little is of no very satisfactory kind; and I have never been able to divest myself of the idea that it bears somewhat the semblance of a hoax. Were I inclined to discuss the points w…