Raffaelle's celebrated Donation of the Keys to St. Peter in the Cartoon before us, as ineffectually struggles with more than the irremovable obscurity, with the ambiguity of the subject: a numerous group of grave and devout characters, in attitudes of anxious debate and eager curiosity, press forward to witness the behests of a person who, with one hand, seems to have consigned two massy keys to their foremost companion on his knees, and with the other hand points to a flock of sheep, grazing behind. What associating power can find the connection between those keys and the pasturing herd? or discover in an obtrusive allegory the only real motive of the emotions that inspire the apostolic group? the artist's most determined admirer, if not the slave of pontifical authority, ready to transubstantiate whatever comes before him, must confine his homage to the power that interests us in a composition without a subject. Poussin's extolled picture of the Testament of Eudamidas is another proof of the inefficacy to represent the enthusiasm of sentiment by the efforts of art. The figures have simplicity, the expression energy, it is well composed, in short, it possesses every requisite but that which alone could make it what it pretends to be:--you see an elderly man on his death-bed; a physician, pensive, with his hand on the man's breast, his wife and daughter desolate at the foot of the bed; one, who resembles a notary, eagerly writing; a buckler and a lance on the wall; and the simple implements of the scene, tell us the former occupation and the circumstances of Eudamidas;--but his legacy--the secure reliance on the friend to whom he bequeaths his daughter--the noble acceptance and magnanimity of that friend,--these we ought to see, and seek in vain for them; what is represented in the picture may be as well applied to any other man who died, made a will, and left a daughter and a wife, as to the Corinthian Eudamidas.