Death from starvation may occur during famines, amongst ship-wrecked sailors, and persons entombed in mines or pits, and is due to sheer privation. It may follow criminal starvation, wilful refusal to take food as a form of suicide, and it has been noted in cases of hysteria and lunacy. It may result from mechanical hindrance to the entrance of food into the body from ankylosis of the jaws, or its passage through the alimentary tract from stricture of the œsophagus or stomach, from cancer or cicatrisation after injury from swallowing corrosive substances. Amongst other diseases, tuberculosis, malignant disease, and diabetes mellitus are the chief which produce external appearances of starvation. In the withdrawal or deprivation of food for criminal purposes the victims are usually old, helpless, or feeble-minded persons, or young children. Symptoms.--These depend on the previous state of nutrition. Starvation may be regarded as acute when death occurs within fourteen days from the withdrawal of food, chronic when at a longer period. The symptoms of hunger vary: they are said to pass off in forty-eight hours, but may last for several days acutely. The body temperature falls below normal, and the fall may be two or three degrees before death. The pulse gradually increases in frequency day by day. The chief sign is loss of body weight. Chossat‘s experiments on pigeons showed that when they were totally deprived of food, the surplus fat of the body was lost first, then the fatty coverings of internal organs, the interstitial fat of muscles last of all; the muscles themselves also wasted. A peculiar odour like acetone emanates from those who have been starved, and towards and after death the odour is putrescent. In addition to the above signs, there are anæmia, sunken, glistening eyes with dilated pupils, prominence of bony projections, pale and dry lips and tongue, parched mouth and throat, weakness of the voice, sunken abdomen, wasted limbs, constipated bowels, urine scanty and turbid. There are pains in the abdomen, relieved by pressure; great thirst, a dusky, dry skin, occasionally purpuric eruptions, exhaustion, ultimately delirium ending in death. =Post-mortem Appearances.=--There is emaciation of the whole body, dry, wrinkled skin of a brown colour; the muscles are flabby and wasted, the abdomen sunken, the eyes red and open; this appearance is not common in death from other causes. The mouth and throat are dry even to aridity. The heart, lungs, and blood-vessels are collapsed, and contain but little blood. The abdominal viscera are shrunken and without enveloping fat. The omentum is devoid of fat, and clear; the gall bladder is full of dark bile; the urinary bladder may be quite empty. The stomach and intestines are collapsed, contracted, and empty, and the walls extremely thinned.