----Do I think these people know the peculiar look they have?--I cannot say; I hope not; I am afraid they would never forgive me, if they did. The worst of it is, the trick is catching; when one meets one of these fellows, he feels a tendency to the same manifestation. The Professor tells me there is a muscular slip, a dependence of the _platysma myoides_, which is called the _risorius Santorini_. ----Say that once more,--exclaimed the young fellow mentioned above. The Professor says there is a little fleshy slip called Santorini's laughing-muscle. I would have it cut out of my face, if I were born with one of those constitutional grins upon it. Perhaps I am uncharitable in my judgment of those sour-looking people I told you of the other day, and of these smiling folks. It may be that they are born with these looks, as other people are with more generally recognized deformities. Both are bad enough, but I had rather meet three of the scowlers than one of the smilers. ----There is another unfortunate way of looking, which is peculiar to that amiable sex we do not like to find fault with. There are some very pretty, but, unhappily, very ill-bred women, who don't understand the law of the road with regard to handsome faces. Nature and custom would, no doubt, agree in conceding to all males the right of at least two distinct looks at every comely female countenance, without any infraction of the rules of courtesy or the sentiment of respect. The first look is necessary to define the person of the individual one meets so as to avoid it in passing. Any unusual attraction detected in a first glance is a sufficient apology for a second,--not a prolonged and impertinent stare, but an appreciating homage of the eyes, such as a stranger may inoffensively yield to a passing image. It is astonishing how morbidly sensitive some vulgar beauties are to the slightest demonstration of this kind. When a _lady_ walks the streets, she leaves her virtuous-indignation countenance at home; she knows well enough that the street is a picture-gallery, where pretty faces framed in pretty bonnets are meant to be seen, and everybody has a right to see them. ----When we observe how the same features and style of person and character descend from generation to generation, we can believe that some inherited weakness may account for these peculiarities. Little snapping-turtles snap--so the great naturalist tells us--before they are out of the egg-shell. I am satisfied, that, much higher up in the scale of life, character is distinctly shown at the age of --2 or --3 months. ----My friend, the Professor, has been full of eggs lately. [This remark excited a burst of hilarity, which I did not allow to interrupt the course of my observations.] He has been reading the great book where he found the fact about the little snapping-turtles mentioned above. Some of the things he has told me have suggested several odd analogies enough.