According to the Boston Traveller 310,000 copies of Uncle Tom's Cabin have been sold in this country, and 90,000 copies of the Key to it. The Lamplighter has had a sale of 73,000 copies; Shady Side, of 42,000; BEECHER's Lectures to Young Men, 26,000; Mrs. CHILD's Life of Hopper, 15,000; COLE's Diseases of Animals, 34,000; The American Fruit Book, 20,000; WELL's School Grammar, 200,000; JEWETT's Instructors for Violin and Flute, 35,000. JEWETT & CO., have paid $70,000 in cash to authors during the three years past, of which $30,000 went to Mrs. H. B. STOWE. These publishers have issued fifty-three new books this year. CROSBY, NICHOLS & CO. have issued forty new books this year.