HENRI BEYLE, who wrote under the pseudonym of Stendhal, not popular among his contemporaries, though winning the admiration of Mérimée and the praise of Balzac, predicted that he would be understood about 1880. If to be studied and admired is to be understood, the prediction has been fulfilled. Taine pronounced him the greatest psychologist of the century; M. Zola, doing violence to facts, claimed him as a literary ancestor; M. Bourget discovered in him the author of a nineteenth-century Bible and a founder of cosmopolitanism in letters.