Mr. Pool, the first American that ever exhibited the following equestrian feats of horsemanship on the continent, intends performing on Saturday afternoon next, near the Powder-House [microform] : The performance to begin at half past four o'clock in the afternoon (if the weather will permit, if not, the first fair day after Sunday). Tickets to be had at Mr. Gordon's tavern, price two shillings each. There will be seats provided for the ladies and gentlemen. A clown will entertain the ladies and gentlemen between the feats.