. . . "The author examines the works of more than forty artists, including Henry McArdle, Theodore Gentilz, Robert Onderdonk, William Huddle, Frederic Remington, Friedrich Richard Petri, Arthur T. Lee, Seth Eastman, Sarah Hardinge, Frank Reaugh, W. G. M. Samuel, Carl G. von Iwonski, and Julius Stockfleth." . . . .