There are things and there are faces which, when felt or seen for the first time, stamp themselves upon the mind like a sun image on a sensitized plate and there remain unalterably fixed. To take the instance of a face-we may never see it again, or it may become the companion of our life, but there the picture is just as we /first/ knew it, the same smile or frown, the same look, unvarying and unvariable, reminding us in the midst of change of the...