'Though searching damps and many an envious flaw 
Have marred this Work.'

This picture of the Last Supper has not only been grievously injured by time, but the greatest part of it, if not the whole, is said to have been retouched, or painted over again. These niceties may be left to connoisseurs.--I speak of it as I felt. The copy exhibited in London some years ago, and the engraving by Merghen, are both admirable; but in the original is a power which neither of those works has attained, or even approached.