The humerus, or bone of the arm, from the elbow to the shoulder, appears quite destitute of muscle, and as if it consisted of bone, skin, vessels, and cellular membrane only. It may be remarked, however, that at that part where the biceps muscle is generally, there is a trifling fulness, probably caused by a few fibres of that muscle.
The piner, the bone of the arm from the elbow to the wrist, seems at the elbow joint considerably enlarged, but, in fact, it is only of its natural dimensions. The muscles of the fore-arm, though small, may, nevertheless, be distinctly traced. The hands are perfect in appearance. Seurat, however, cannot straighten his fingers, but keeps them in a semi-bent position; with this exception, he can use them freely.
The trunk is singularly shaped. Viewed from the front, the chest is not particularly narrow; it measures, from one shoulder to the other, across the sternum, or breast-bone, sixteen inches. The sternum is much flattened, as though it had been driven inwards, towards the dorsal vertebra, or back-bone. In well-formed people, the sternum is a little convex, externally, and concave, internally, permitting all possible room for the thoracic viscera. In Seurat, however, this order of things is changed, the outer surface of the breast-bone being concave, and the internal convex. It is pushed so far inwards, as scarcely to leave more than one and a half inches, or two inches between itself and the opposite vertebræ.
This position of the sternum, and of the ribs, may probably afford an explanation of the causes which produce a slight impediment to his swallowing with despatch, or such morsels as are not cut very small; and of the unnatural situation of the heart, which, instead of being placed behind the 3d, 4th, and 5th ribs, is observed pulsating very low down behind the 7th, 8th, and 9th, ribs, in the situation of the left hypochondrium. The five or six lower ribs, called false or floating ribs, are rounder, and approach nearer to nature in their form, thereby affording sufficient space for the heart, stomach, and liver, and some other of the abdominal viscera. It is conceived, that without this freer sweep of the lower ribs, life could not have been maintained, so much would the functions of the heart, and chylopretic viscera have been interrupted. The false ribs descend very low down, on each side, there being scarcely one and a half inch between them and the crest of the ileum. The pelvis is capacious, and on its front aspect presents nothing very extraordinary.
There is an appearance of the abdomen, which must not be passed over. When looking at it, one might almost suppose that it consisted of two cavities, an upper and a lower one, so much is this poor fellow contracted round the loins. The following admeasurement may afford some idea of this circumstance:—
| Ft. | In. | ||
|---|---|---|---|
| Circumference of the chest, directly under the armpits | 2 | 6 | 3⁄4 |
| Circumference lower down, opposite the second false rib | 2 | 2 | |
| Circumference round the loins | 1 | 9 | |
| Circumference round the pelvis | 2 | 3 | 1⁄2 |
The muscles of the sides of the pelvis, partake of the general wasting, in consequence of which the trochantes stand out from the glenon cavities in the same gaunt manner that they do in the true skeleton, being covered by integuments alone. The thighs are imperfect in bulk, and the knees, like the elbows, appear enlarged. The calves of the legs seem to have more firm good muscle, than any other part of the body, particularly that of the right leg, which is much more fleshy than the left. The feet are well formed; a trifling overlapping of the toes is probably accidental.
The examination of the back part of Seurat’s body corresponds with the front, as far as the general leanness goes. The occiput is flat, the neck broad; the scapula projecting, the spine crooked; some of the lower cervical vertebræ are curved backwards, and there is a curve towards the right side, formed by some of the lower dorsal vertebræ. All the bony points of the back part of the body are so prominent that every individual bone may be distinctly traced by the eye, even at a considerable distance.
On first beholding Seurat, a person might almost imagine that he saw before him, one returned from “that bourne whence no traveller returns:” the first impressions over, he begins to wonder how so frail a being exists, and is surprised, that all those functions, necessary for the continuance of his own life, are regularly and effectively performed. He eats, drinks, and sleeps—the progress of digestion, as carried on throughout the alimentary canal, is regularly executed. The secretions of the liver, kidnies, and skin are separated from the blood, in such quantities as may be deemed necessary for the economy of his frame. His heart performs its office regularly, and sends the blood to the various parts of the body, in due proportions. He can bear the effects of heat and cold, like other people accustomed to lead a sedentary life, and does not need unusual clothes. His mind is better constituted, perhaps, than that of many a man, better formed in body. He comprehends quickly, and his memory is good. He has learnt to read and write his own language, and is now anxious to become acquainted with ours.
Such is Claude Ambroise Seurat, who may justly be considered as a most extraordinary lusus naturæ,—an object calculated to throw much and useful light on many interesting questions of the highest importance, towards the advancement of anatomical study.