In his latest story, Huckleberry Finn (Tom Sawyer's Comrade), by Mark Twain, Mr. Clemens has made a very distinct literary advance over Tom Sawyer, as an interpreter of human nature and a contributor to our stock of original pictures of American life. Still adhering to his plan of narrating the adventures of boys, with a primeval and Robin Hood freshness, he has broadened his canvas and given us a picture of a people, of a geographical region, of a life that is new in the world. The scene of his romance is the Mississippi river. Mr. Clemens ha ....