In the case of The Queen vs. John Henry Wilson, for murder, the accused burnt his step-father in a lime-kiln for over a week, and on strewing ashes from the kiln fine fragments of bone picked up were afterward identified as human. At the trial identity rested on the fact of finding two buttons and a buckle, which were recognized as part of the deceased’s wearing apparel when last seen.
In the second case, that of a young woman supposed to be in the family way who should not have been, it was thought that she had been confined and made away with the infant. Under this supposition the premises where she lived were searched by the chief constable, who found in the stove some bones and fragments of bones that had been burnt. On examination by a qualified medical man, the fragments turned out to be not human bones, but those of some other animal, presumably those of a pig and of a chicken, which the family, who lived in a tenement-house without a back yard, had put in the stove to get rid of the refuse.[570]
IDENTIFICATION OF HUMAN BONES.
In deciding whether certain bones are human or not, the medical jurist should exercise great caution in venturing an opinion as to the precise animal of which he may believe they formed a part. There is no great difficulty in detecting the smallest fragments of bone by means of the microscope, but we cannot say with safety whether the fragments belonged to a mouse, a man, or an elephant. A real difficulty occurs in recognizing the nature and origin of the bony remains when only a small fragment or a single bone is submitted for report. If a sufficient portion of the skeleton be submitted it can be easily recognized as human, as in the imbedded remains of the troglodyte found in the limestone deposit of Luray Cave, Virginia, and only in the exceptional case of the bones of one of the manlike apes could a difficulty of distinction arise. The characteristic signs that distinguish a gorilla skeleton, for instance, are the smaller thumb; notable length of tibia and of radius, although this relative length of extremities has been remarked in negroes; small facial angle, 30° to 40° in the monkey, 70° to 80° in man; very inferior cranial capacity, the maximum in a gorilla being 550 cubic centimetres, while the minimum in the human species is from 970 with a maximum of 1,500 to 1,900 centimetres; a low index of the foramen magnum; convexity of the squamo-parietal suture, and larger and more salient canines and incisors. The volume of the endocranium in the female gorilla, like that of the human species, is smaller than that of the male; this difference being almost 80 c.c. for the anthropoid female.
In studying the osseous system it should be remembered that certain modifying elements, as artificial compression, pathological deformities, posthumous distortions, and hygrometric conditions, may affect particularly the skull, and if due allowance be not made for these the study may lead to glaring absurdities. Not longer ago than 1725 there was found in a quarry at Œningen the skull of a fossil batrachian compressed into rude resemblance to the human cranium, which was announced to the world as Scheuchzer’s “Homo diluvii testis et theoscopos,” and as the remains of one of the sinful antediluvians who perished in the Noachic deluge.
Are the Bones Old or Recent?
An important point may arise in questions of identification of bones as to the oldness: whether they are old or recent. The first indication is furnished by the presence or by the absence of the soft parts. The existence of the periosteum and of the spinal marrow is the most persistent proof of a recent state; but these alone with the soft parts are usually destroyed in two or three years. In ordinary circumstances a body becomes skeletonized in about ten years, although in exceptional cases the cadaver may resist decomposition after many years.[571]
This summer in transferring an old cemetery in Georgetown, D. C., the remains of the grandmother of one of the writer’s patients were found in such a state of preservation as to be easily recognized after fifty years of burial. More recently, in unearthing the remains of an old graveyard in East Washington, a striking peculiarity was noticed in the fact that many bodies of young people buried in recent years when taken up consisted of a few blackened bones and shreds of grave-clothes. while the remains of many older people buried long before the Civil War were found in an excellent state of preservation. One of these was a Mr. Fullin, who died from the effects of a sunstroke forty years ago and was buried in a metallic case. An old lady who attended his funeral was present when his remains were unearthed and said they looked as natural as when he was laid away in 1852. The features were well preserved and even the white linen of the shroud was unsoiled.
Alterations in the texture of the bone, such as that caused by dryness and by diminution in the proportion of organic matter, may be ascertained by histological examination, and one of the characters of age may be furnished by taking into consideration the specific weight. Placing the skull at an average density of 1,649, that of an infant would be 1,515, an adult 1,726, and that of old age 1,636.
Ascertaining the proportion of organic and inorganic matter, the phosphates and carbonates, by chemical means may furnish an additional help in the interpretation of the remains.