A certain number of cases, however, are not necessarily fatal, and the worms of the blood-vessels have not an indefinite period of life, so that there is some encouragement for both therapeutic and preventive treatment. During the attack we must be content to treat symptoms. French veterinarians still trust largely to general bleeding, adopted at the very outset and to the extent of 6 to 10 quarts. It will temporarily lessen the vascular tension, more permanently dilute the blood, and calm nervous excitement, and in the most violent cases, as a kind of forlorn hope, it might be tried with the view of tiding over the acute stage until a freer collateral circulation could be established. The use of anodynes will be more generally acceptable to American practitioners. Two to four grains of sulphate of morphia or codeine may be given hypodermically in combination with 1½ gr. eserin, 7 grs. barium chloride, or 2 grs. pilocarpin, to secure a speedy movement of the bowels. To counteract intestinal fermentation perhaps no better agent can be got than chloral hydrate, ½ oz. of which may be given by the mouth in water, and ½ oz. more by the rectum. Wet compresses to the abdomen, or fomentations with water rather hotter than the hand can bear or even the application of mustard is sometimes useful as a soothing or derivative agent. In the absence of morphia or chloral, laudanum, ether, chloroform, camphor or assafœtida have been recommended. It is important to keep the patient on a soft, littered floor to prevent injury from his throwing himself down, and walking him around may be resorted to for the same purpose. _Prevention._ After a non-fatal attack and in every case in which a horse is found to harbor the sclerostoma equinum in quantity, measures should be taken to expel those present in the bowels and to prevent the entry of embryos. The infested horse may be purged and put on two drachms each of tartar emetic and sulphate of iron every morning in a handful of feed half an hour before the first meal. After six doses he may take a second active purgative. In case of need the addition of 6 grains arsenious acid and a drachm of carbolic acid to each dose will render them much more effective. All water must be withheld that comes from streams running by farm-yards, from ponds or open wells in barn-yards, from uncovered cisterns and from any source which receives drainage or leaching from land occupied by solipeds or spread with their manure. A course of vermifuge medicine should be given at intervals of two or three months to get rid of the worms which have passed in the interval from the cysts of the colon, into the intestine. NON-VERMINOUS INTESTINAL CONGESTION IN SOLIPEDS.