I went to the Tower to try a metal at the Assay-master's, which only proved sulphur; then saw Monsieur Rotière, that excellent graver belonging to the Mint, who emulates even the ancients, in both metal and stone;38 he was now molding a horse for the King's statue, to be cast in silver, of a yard high. I dined with Mr. Slingsby, Master of the Mint.