Avery's own farrier. 77 



been imperfectly cured, and have left impurities of blood, 

 that must in time destroy the horse, or work itself out by 

 way of the urine, the kidneys being the organs by which 

 these fluids are secreted; and sometimes these organs 

 are powerfully operated on by the sympathetic affection 

 of other disordered parts; hence we see the water look 

 muddy or milky, and the sediment thereof will contain 

 numerous ced and yellow particles, which, by the secret- 

 ive organs not doing their work properly, cause (though 

 not very frequently) gravel, or stone in the bladder as it 

 is called. 



The symptoms are, great restlessness and pain, stop- 

 page of urine, with fits or spasms, cold ears, and 

 generally slow but strong pulse. 



There are various things that operate powerfully upon 

 the water, of which I will mention several that may be 

 employed with good success. It is not always that one 

 medicine will suit or cure all diseases of this nature. 

 They are often as differently located as they are derived 

 from various causes, &c.; sometimes the difficulty is 

 wholly in the kidneys, and may not be anything more 

 than inflammation; and it may be gravel lodged between 

 the kidneys and bladder, or in the bladder itself; and 

 again it may not be in either of these places, but arise 

 merely from inflammation in the neck of the bladder and 

 glands. So you see that one medicine is not likely to 

 reach every case under all these varying circumstances. 



By introducing the hand into the rectum, if the blad- 

 der is found to be full and hard, there is inflammation of 

 the neck of it; if it is empty, yet on the portion of the 

 intestines over it there is more than natural heat and ten- 



