There are certain elements which are requisite in the construe tion of a picture, and the greatest of these is vigor. With this present much may be forgiven in the way of technical deficiencies, but without it nothing of enduring value can be attained, though this is by no means to deny the worth of delicate prints in either a high or a low key. Such pictures easily may have more strength than the bolder, full-scale work of less thoughtful workers, for the finest strength is that which is controlled.