2. Bodies of corpulent adults.

3. Exposure of bodies to the soil of water-closets.

4. The immersion of bodies in water, the change taking place more rapidly in running than in stagnant water.

5. Humid soil, especially when bodies are placed in it one upon the other. In this case the lowest of them is first changed.

When a body has been completely saponified it may remain in this state for years. In one instance, after seventeen years’ burial many of the organs could still be recognized.

The time required for saponification to take place is sometimes of medico-legal importance. Three years are usually necessary for bodies buried in the earth. The change occurs more rapidly in water. Cases are recorded where the body of a new-born child was completely saponified in six weeks, and again, the change had commenced in a body which had been in the water about four months; but these are unusual cases.

DATA UPON WHICH OPINION AS TO TIME OF DEATH IS FORMED.

The changes which take place in a body before putrefaction sets in may enable a medical jurist to form an opinion as to the probable time which has elapsed since death; yet it must be remembered, to pronounce the time which has elapsed can only be done approximately, for very many conditions will have to be considered, which will vary in each individual case. The importance of considering the minutest detail is well illustrated by the death of Prince de Condé, Duke of Bourbon, who was found dead in his bedroom in the chateau of St. Cyr. When discovered at 8 o’clock in the morning, the deceased was found partly undressed, hanging by his cravat to one of the window shutters. The body was cold and the lower extremities rigid. As in asphyxia from hanging the warmth of the body is usually preserved longer than under common circumstances, viz., from twelve to fifteen hours, before which period rigidity is seldom complete, the medical examiner inferred that the deceased must have died very soon after he retired to his bedroom on the previous night. As this was proven to have been 10 P.M., it followed that only ten hours had elapsed—a short time for cooling and rigidity to have taken place. It was thus rendered probable that the hanging took place soon after deceased reached his bedroom. It was alleged that the duke had been murdered, and that his body had been afterward suspended to create a suspicion of suicide. The condition of the body was, among other things, adverse to this opinion. From 10 to 12 o’clock it was proved there were numerous attendants moving about near the duke’s apartments. They would have heard any unusual noise the duke must have made in resisting his assailant. But no noise was heard in the room at that or any other time, and the presumption of this being a homicide was thus strongly rebutted.

Cadaveric rigidity, while often it will aid to, is not a reliable guide. When once it is established it may remain two, three, or four days, according to the season of the year and other circumstances, and when it exists there is no rule by which it can be determined whether a body has been in this state three hours or three days.