Such is a general view of the symptoms caused by the irritant poisons. This topic will be afterwards taken up in detail under the head of the several species. At present an important subject remains for consideration, namely, the natural diseases whose effects are apt to be mistaken for the effects of poison. The remarks now to be made might be extended to many diseases. In fact, they might be extended to all which prove fatal suddenly, for all such diseases are apt in peculiar circumstances to give rise to a suspicion of poisoning. But those only will be here noticed which occasion the greatest embarrassment to the medical jurist, and which are most likely to come under his review in courts of law. They are the following:—Distension and rupture of the stomach; rupture of the duodenum, biliary ducts, uterus, or other organs in the belly; the effects of drinking cold water; bilious vomiting and common cholera; malignant cholera; inflammation of the stomach; inflammation and perforation of the intestines; inflammation of the peritonæum; spontaneous perforation of the stomach; melæna and hæmatemesis: colic, iliac passion and obstructed intestine. 1. _Distension of the Stomach._—Mere distension of the stomach from excessive gluttony may cause sudden death. Generally indeed the symptoms and appearances in the dead body show that death is the consequence of apoplexy; but sometimes not. In order to preserve the continuity of the succeeding remarks on the diseases of the stomach which imitate poisoning, it may be useful to consider in the present place all the varieties of the effects of distension. Excessive distension of the stomach, then, sometimes causes sudden death by inducing apoplexy, which is commonly of the congestive kind,—that is, without rupture of vessels. Mérat has related an instructive case of this kind. A man in good health, while greedily devouring an excellent dinner, became suddenly blue and bloated in the face; a clammy sweat broke out over his body; and he died almost immediately. On dissection the stomach was found enormously distended with food, and the vessels of the brain were so gorged, that the brain appeared too large to be contained within the skull.[141]