=Lesions.= The lesions have not been carefully studied, but it is probable that in many cases they might afford a key to the symptoms noted. Like all mucous lesions, they are difficult to demonstrate histologically. Infiltration and thickening of the mucous corium and submucous layers have been described. Such lesions indicate nothing; but in some cases new growths have been found in the gastric compartments or contractions about the pyloric orifice, the essential importance of which cannot be doubted. =Treatment.= If our knowledge is still insufficient to enable us precisely to diagnose what we have termed “gastric dyspepsia,” or what is still currently described as “chronic dyspepsia,” the difficulty is even greater when attempting to lay down lines of treatment, because of the lack of known facts and the want of a base for reasoning. Thus we find, without being able to explain why, that some prescribe tartar emetic, others rapid and energetic purgatives, others, again, laxatives; whilst German authors, apparently without any justification, recommend oil of turpentine. It seems to us, however, that one might do better than this and attempt to lay down some rational indications for treatment. (_a_) In cases characterised only by chronic tympanites, without diarrhœa, without manifest constipation (motor dyspepsia), and without any other apparent organic disturbance, drugs calculated to stimulate peristalsis of the rumen seem indicated. The most promising comprise ipecacuanha in doses of 1 to 2 drams per day, tincture of nux vomica in similar doses, powdered nux vomica in doses of 45 to 75 grains, and laxatives like Carlsbad salts in doses of 8 to 10 drams. Little by little peristalsis returns, becomes regular, and the chronic tympanites disappears for good. This is frequently the case during gestation, when the condition simply consists in motor dyspepsia without anæmia. (_b_) If, on the contrary, chronic tympanites is accompanied by constipation, and the fæces are hard or, as is usually the case, covered with mucus, suggesting the probability of excess of hydrochloric acid, salines are indicated—not to the point of producing purgation, which would not lead to any lasting improvement, but still as laxatives, continued daily for ten, fifteen, or twenty days, or, if necessary, even longer. Carlsbad salts in doses of 8 to 10 drams, or one-ounce doses of sulphate of sodium associated with 2½ drams of bicarbonate of potash after each meal, are to be recommended in preference to bicarbonate of soda alone, because they act on the secretions, on the muscular system, and also on the liver.