88 THE HOESE AXD ITS DISEASES. 



not only does all the blood of the chylopoetic viscera 

 pass through it, but that from the umbelieal vein 

 likewise. 



It is impossible not to admire the wisdom displayed 

 in the structure of these various parts, and the contri- 

 vances to produce these certain ends 



In the foetal state, the glands and other organs have 

 no specific action to perform, or at least but little more 

 than evolution or growth, hence there is no necessity 

 for blood more pure than is merely wanted for the 

 support, and for this evolution, were the blood more 

 pure, the specific action might commence, and therefore 

 nature exhibits some admirable contrivance purposely 

 to deteriorate it, and to render it less pure, that the 

 various organs might be held only in a state of capacity. 

 The liver also exhibits a wonderful contrivance, that 

 the regulation of the economy shall be complete, and 

 the whole system in the foetal state evolved. "When 

 after birth there is no longer any necessity for these 

 contrivances, but, instead, a necessity even exists for 

 their removal ; it is effected by the common consent of 

 parts, and now the liver receives venal blood only, and 

 from which, by the living powers of the part, it is 

 enabled to secrete a fluid, that proves of the utmost im- 

 portance to the system, being the stimulus whereby the 

 intestines are impelled into motion. 



Inflammation of the Bladder. 



Cause. — This disease is generally produced by such 

 causes as in any way hinder or impede the free passage 

 of the urine, or the too long forced retention of it under 

 any circumstances. 



Symptoms. — In cases of that kind a degree of fever 

 is evident, with frequent inclinations to pass' urine, 

 without the means of passing any, or but very little at 

 once, and the animal presents nearly the same appear- 

 ance as described in the inflammation of the kidneys. 



