AT TURNER OPERA HOUSE.Prof. Hetzler’s Juvenile Orchestra, Saturday Night.atr-ofinatmoaofLast Saturday night Prof. ltenslers Juvenile Orchestra appeared in Turner Opera House and played to a good sited and very enthuastie audience, and was pronounced by all who attended as the best concert that has as yet visited this city. Nineteen of them visited here, ranging in age from 9 years to 16, and are all thorough musicians. They were under the direction of Prof. Hensler, and continueally received loud applauses from the audience during their evening’s entertainment. Each little fellow has an instrument and render Ins part to perfection, and by so doing the music of the hand is delightful—the like of which we never had the pleasure of hearing. One of the hand played a fife solo, which was very good, and responded to anencore, when the little musician was made happy by a boquet which was thrown at him by Prof. Metcalf.Sunday afternoon they entered the •band stand in the southeast, corner of the court house park, to the delight of the people around the square, then they took a buss pulled by four horses, and left for the picnic at the Shooting Park, where they played the balance of theday.