[55] A parallel fact, further elucidating this, is supplied by a locomotive engine. On looking at the driving wheel, there will be found, besides the boss to which the connecting rod is attached, a corresponding mass of metal on the opposite side of the wheel, and equidistant from the centre; or, if the engine be one having inside cylinders, then, on looking between the spokes of the driving-wheel, it will be seen that against each crank is a block of iron, similar to it in size, but projecting from the axle in the reverse direction. Evidently, being placed on opposite sides of the centre of motion, each crank and its counterbalance move in opposite directions relatively to the axle; and by so doing, neutralize each other’s perturbing effects, and permit a smooth rotation. This relationship which exists between the motions of the counterbalance and the crank, is analogous to that which exists between the motions of the arms and legs in walking; and in the early days of railway-locomotion, before these counterbalance weights were used, locomotive driving-wheels were subject to violent oscillations, analogous to those jerkings of the shoulders which arise when we walk fast without moving our arms.
PERSONAL BEAUTY.
[First published in The Leader for April 15, and May 13, 1854.]
It is a common opinion that beauty of character and beauty of aspect are unrelated. I have never been able to reconcile myself to this opinion. Indeed, even those who hold it do so in an incomplete sense; for notwithstanding their theory they continue to manifest surprise when they find a mean deed committed by one of noble countenance—a fact implying that underneath their professed induction lies a still living conviction at variance with it.
Whence this conviction? How is it that a belief in the connexion between worth and beauty primarily exists in all? It cannot be innate. Must it not, then, be from early experiences? And must it not be that in those who continue to believe in this connexion, spite of their reasonings, the early and wide experiences outweigh the later and exceptional ones?
Those who do not admit the relationship between mental and facial beauty, usually remark that the true connexion is between character and expression. While they doubt, or rather deny, that the permanent forms of the features are {388} in any way indices of the forms of the mind, they assert that the transitory forms of the features are such indices. These positions seem scarcely consistent. For may we not say that the transitory forms, by perpetual repetition, register themselves on the face, and produce permanent forms? Does not an habitual frown by-and-by leave ineffaceable marks on the brow? Is not a chronic scornfulness presently followed by a modified set in the angles of the mouth? Does not that compression of the lips significant of great determination, often stereotype itself; and so give a changed form to the lower part of the face? And if there be any truth in the doctrine of hereditary transmission, must there not be a tendency to the re-appearance of these modifications as new types of feature in the offspring? In brief, may we not say that expression is feature in the making; and that if expression means something, the form of feature produced by it means something?
Possibly it will be urged, in reply, that changes of expression affect only the muscles and skin of the face; that the permanent marks they produce can extend but to these; that, nevertheless, the beauty of a face is mainly dependent upon the form of its bony framework; that hence, in this chief respect, there cannot take place such modifications as those described; and that, therefore, the relationship of aspect to character, while it may hold in the details, does not hold in the generals.
The rejoinder is, that the framework of the face is modified by modifications in the tissues which cover it. It is an established doctrine in physiology, that throughout the skeleton the greater or less development of bones is dependent on the greater or less development of the attached muscles; that is, on the exercise of them. Hence, permanent changes in the muscular adjustments of the face will be followed by permanent changes in its osseous structure.
Not to dwell in general statements, however, let me cite cases in which the connexion between organic ugliness and {389} mental inferiority, and the converse connexion between organic beauty and comparative perfection of mind, are distinctly traceable.
It will be admitted that the projecting jaw, characteristic of the lower human races, is a facial defect—is a trait which no sculptor would give to an ideal bust. At the same time, it is a fact that prominence of jaw is associated in the mammalia generally with comparative lack of intelligence. This relationship, it is true, does not hold uniformly. It is not a direct but an indirect one; and is thus liable to be disturbed. Nevertheless, it holds among the higher tribes; and on inquiry we shall see why it holds. In conformity with the law that organs develop in proportion as they are exercised, the jaws are relatively large where the demands made on them are great; and diminish in size as their functions become less numerous and less onerous. Now, in the lower mammals the jaws are the sole organs of manipulation—are used not only for mastication, but for seizing, carrying, gnawing, and, indeed, for everything save locomotion, which is the solitary office performed by the limbs. Advancing upwards, we find that the fore-limbs begin to aid the jaws, and gradually to relieve them of part of their duties. Some creatures use them for burrowing; some, as the felines, for striking; many, to keep steady the prey they are tearing; and when we arrive at the monkeys, whose fore-limbs possess such power of prehension that objects can not only be seized, but carried and pulled to pieces by them, we see that the jaws have fewer functions. Accompanying this series of changes, we see a double change in the form of the head. The increased complexity of the limbs, the greater variety of actions they perform, and the more numerous perceptions they give, imply a greater development of the brain and of its bony envelope. At the same time, the size of the jaws has diminished in correspondence with the diminution of their functions. And by this simultaneous protrusion of the upper part of the cranium {390} and recession of its lower part, what is called the facial angle has increased.