Colic in Solipeds from Verminous Embolism. 217 



Another series of circulatory disorders are liable to take place. 

 The blocking of the vessels of the right bundle, tends to increase 

 the blood pressure in the left bundle and the anterior one, and 

 thus to determine congestions, paresis and inflammations in the 

 small intestines, the second division of the double colon and the 

 floatingcolon. The resulting inflammation and increased vascular 

 tension may lead indirectly to implications of the brain and lung. 



Extravasations so extensive as to appear like blood-clots may 

 be present between the layers of the mesentery or in the mucosa 

 and sub-mucosa, and blood, liquid or coagulated, may have 

 accumulated in the abdominal cavity. Blood effusion into the 

 intestine gives a dark red coloration to the contents which are 

 further mixed with di.stinct clots. 



The atonic bowels are always the seat of extensive fermenta- 

 tions and tympany. The microbes engaged in these fermentations 

 and their toxins, are accountable for toxic changes occurring in 

 the locally diseased parts and in distant organs. To this may be 

 attributed the conge.stion and .softening of the liver and the 

 engorgements and hemorrhagic centres in the .spleen. 



Symptoms. An animal, perhaps known to harbor the sclero- 

 stoma equinum, is suddenly attacked with violent and persistent 

 colic. He trembles, paws, moves his hind feet uneasily, kicks 

 the abdomen, throws anxious looks at the flanks, crouches, lies 

 down, rolls, gets up, and at once gets down again. The intensity 

 of the suffering rapidly increases, the face is drawn and pinched, 

 the eye is extremely anxious, the patient no longer lies down, but 

 throws himself down reckless of consequences, when down he is 

 not quiet for an in,stant, but now on his breast, then on his side, 

 then on his back, the limbs struggling and jerked violently, the 

 head turned first to one side and then to the other, he is a picture 

 of extreme agony. If made to walk the same indications con- 

 tinue ; he walks with head down and limbs semiflexed ready to 

 drop at any moment, and often he will drop suddenly in .spite of 

 every effort to keep him on his feet. The pulse is at first strong 

 and full, but as extensive effusion takes place into the bowels or 

 abdomen, or as the animal is poiisoned by toxins, it becomes small, 

 weak, and it may be imperceptible. Breathing is quick and catch- 

 ing, and the mucous membranes are dark red. Sweating which 

 shows first about the elbows or flanks or back of the ears finally 



