on exactly the same lines as any one who had preceded or who followed him. His imperious personality he stamped upon the smallest trifle of his work. Luca's frescoes at Orvieto, when compared with Michelangelo's in the Sistine, mark the transition from the art of the fourteenth, through the art of the fifteenth, to that of the sixteenth century, with broad and trenchant force. They are what Marlowe's dramas were to Shakespeare's. They retain much of the mediaeval tradition both as regards form and sentiment. We feel this distinctly in the treatment of Dante, whose genius seems to have exerted at least as strong an influence over Signorelli's imagination as over that of Michelangelo. The episodes from the Divine Comedy are painted in a rude Gothic spirit. The spirits of Hell seem borrowed from grotesque bas-reliefs of the Pisan school. The draped, winged, and armed angels of Heaven are posed with a ceremonious research of suavity or grandeur. These and other features of his work carry us back to the period of Giotto and Niccolò Pisano. But the true force of the man, what made him a commanding master of the middle period, what distinguished him from all his fellows of the _quattrocento_, is the passionate delight he took in pure humanity--the nude, the body studied under all its aspects and with no repugnance for its coarseness--man in his crudity made the sole sufficient object for figurative art, anatomy regarded as the crowning and supreme end of scientific exploration. It is this in his work which carries us on toward the next age, and justifies our calling Luca "the morning-star of Michelangelo."