Spontaneous Combustion.—Spontaneous combustion of the human body has been seriously discussed in this connection, and explanations of popularly reported cases have been attempted. The writer refers to the subject here for the sole purpose of stating that no trustworthy evidence of the possibility of any such condition or result exists.
Treatment.
In cases of severe burns the constitutional as well as the local conditions demand attention. Locally, a great variety of applications has been employed: starch, gum, oxide of zinc, solution of caoutchou, collodion, cotton wadding, a mixture of linseed oil and lime-water on cotton or lint, and many other agents are used. The important consideration is to exclude the air from and to afford a protective covering for the injured surface. The constitutional treatment varies in different cases; but its main object is to relieve pain, induce reaction from the shock, and support the depressed nervous system.
For the first opium or its preparations in proper doses is indicated. Alcoholic stimulants in some cases are demanded in addition. After the stage of reaction has occurred the therapeutics must be governed by inflammatory conditions; or later by the exhaustion from continued pain, suppuration, etc.
Post-Mortem Appearances.
In the EXTERNAL post-mortem examination of a burned body careful note should be made of the sex, probable age, and every circumstance leading to the establishment of the identity of the individual. The parts burned should be specially examined as to their condition, whether exhibiting redness, vesication, or charring. The amount of surface covered by the burns should be computed; also the relation of the burned parts to those uninjured, whether separated by a sharply marked line of redness or merging into the sound skin without a line of demarcation. The condition of the blisters should be examined as to whether they are full or empty and their contents as to whether consisting of clear or turbid serum.
Internally.—In some cases no lesions are found on examination. These are usually cases where death occurred from shock or severe pain (Case 12). Ordinarily the mucous membrane of the respiratory tracts is congested. In some instances, however, no redness has been discernible. Where death occurred by suffocation and asphyxia, the trachea and bronchial tubes have been found to contain a dark smoky or sooty mucus[707] (Case 9).
The serous membranes of the brain, thorax, and abdomen are in many cases found reddened with effusions, more or less considerable, into the ventricles of the brain and the pleural, pericardial, and peritoneal cavities from the sudden inflow of blood from the surface, caused by the local injuries.
When the body has been badly charred or incinerated the skeleton usually remains, and it is possible to determine the age from the size and development of the bones and the sex from the shape of the bones of the pelvis. Careful search should be made for special articles of identity. False teeth,[708] a watch and chain, buttons, etc., have alone been sufficient to identify the incinerated remains (Case 23). Where the whole body and even the bones have been reduced to ashes, some portions of bone, etc., may be found on careful search. Sifting the ashes will give some pieces of bone, etc., which may be sufficient to disclose the presence of human remains[709] (Case 24). A chemical analysis of the ashes also will aid in establishing this fact. In cases where cremation of the body has been resorted to to conceal crime, the length of time necessary to entirely consume the human body may become an important question. A period of less than ten hours has been proven sufficient.[710]