THE VEINS. 



poison. He has to put out the fire, and not to feed it. When tbe 

 fever is subdued, but nature finds some difficulty in rallying, we may 

 give gentian, Colombo, and ginger, with advantage. 



When the tumors and ulcerations appear, the second staore of in- 

 flammatory fever is established, and the measures recommended for 

 that must be adopted. This disorder attacks cattle of all ages. Full- 

 giown beasts are more subject to typhoid than to inflammatory 

 fever ; but among younger ones and weaning calves, and those of 

 eight, nine, and ten months old, it is extremely fatal, for they have 

 not strength to bear up against this secretly consumino- fire. 



The mode of prevention, when it first breaks out, is to bleed and 

 physic ; the grand thing of all, however, is to remove not merely to 

 shorter, but to dryer pasture. With the youngsters, bleeding may, 

 perhaps, be dispensed with ; but a dose of physic should be given, 

 and a seton inserted in the dewlap ; and the change of pasture is 

 indispensable. Low and damp situations do not agree with cattle ; 

 and the inhabitants of low, marshy grounds have too often a sad ac- 

 count to render of their cattle. 



Homoeopathic treatment. — Bryonia, twice a day, is the remedy best 

 suited to the entire course of the disease. Acidum muriaticum 

 should be given when there is great debility and dryness of the 

 mouth ; arnica, when the animal remains stretched without motion, 

 and without consciousness ; stramonium and hijoscyamus, if partial 

 convulsions are observed to take place ; arsenicum in watery diarrhoea ; 

 china, argilla, and sulphur, when the food comes away undicrested ; 

 belladonna, in convulsions and wildness of look ; opium, when the 

 animal is stretched out as if dead, with small pulse, hard faeces, or 

 constipation ; veratrum, in diarrhoea with cold extremities. 



THE VEINS. 



The principal disease of the capillary vessels having thus been 

 disposed of, the blood must be again traced back to the heart. 



By means of the various important functions which are discharged 

 by the capillaries, the blood is essentially changed as it traverses 

 them. It becomes black, venous, and no longer capable of sustain- 

 ing Ufe ; and it must be sent back to the heart, to be again rendered 

 arterial. The capillaries in which the blood has undero-one this 

 change begin to unite, and when a sufficient number of them have 

 joined their streams, that branch is called a vein. The coats of the 

 vein are much weaker and thinner than those of the artery, and the 

 blood flows through them by a diS'erent principle from that which 

 produces the circulation either in the arteries or capillaries. 



All the veins of the limbs, or that are subject to the pressure of 

 any of the muscles, have valves, -which permit the blood* to flow on 

 towards the heart, but oppose an insuperable obstacle to its course 

 hi a contrary direction ; thus, by the pressuie of the muscles, a cob- 



