The present is allowed to be the age of Wonders and Improvements in the Arts. The idea of Man's flying in the Air, twenty years ago, before the discovery of the use of the balloon, would have been laughed at by the most credulous! Nor does the History of Nature afford so extraordinary a relation as that of the man's eating and subsisting on pebbles, flints, tobacco pipes and mineral excrescences; but so it is and the Ladies and Gentlemen of this Metropolis and its vicinity have now an opportunity of witnessing this extraordinary Fact by seeing the Most Wonderful Phenomenon of the Age, who Grinds and Swallows stones, etc., with as much ease as a Person would crack a nut, and masticate the kernel. This Extraordinary Stone-eater appears not to suffer the least Inconvenience from so ponderous, and to all other persons in the World, so indigestible a Meal, which he repeats from twelve at noon to seven. Any Lady or Gentleman may bring Black Flints or Pebbles with them. N. B.--His Merit is fully demonstrated by Dr. Monroe, who in his Medical Commentary, 1772, and several other Gentlemen of the Faculty. Likewise Dr. John Hunter and Sir Joseph Banks can witness the Surprising Performance of this most Extraordinary STONE-EATER. Admittance, Two shillings and Six pence. A Private Performance for five guineas on short notice. A Spanish stone-eater exhibited at the Richmond Theater, on August 2nd, 1790, and another at a later date, at the Great Room, late Globe Tavern, corner of Craven Street, Strand. All of these phenomenal gentry claimed to subsist entirely on stones, but their modern followers hardly dare make such claims, so that the art has fallen into disrepute. A number of years ago, in London, I watched several performances of one of these chaps who swallowed half a hatful of stones, nearly the size of hen's eggs, and then jumped up and down, to make them rattle in his stomach. I could discover no fake in the performance, and I finally gave him two and six for his secret, which was simple enough. He merely took a dose of powerful physic to clear himself of the stones, and was then ready for the next performance. During my engagement in 1895 with Welsh Bros. Circus I became quite well acquainted with an aged Jap of the San Kitchy Akimoto troupe and from him I learned the method of swallowing quite large objects and bringing them up again at will. For practice very small potatoes are used at first, to guard against accident; and after one has mastered the art of bringing these up, the size is increased gradually till objects as large as the throat will receive can be swallowed and returned. I recall a very amusing incident in connection with this old chap.