Hydrocemia. Ance^nia Oligczniia. 371 



or congestion of some internal organ, etc. A drop of blood colors 

 deeply the finger or other object, it clots firmly in three to five 

 minutes, and shows more than usualof a buffy coat. 



Treatment. As dangerous plethora is usually a very transient 

 condition the main attention should be given to prevention , in 

 keeping the diet low and the emunctories active in high condi- 

 tioned parturient cows ; in lowering the diet and securing free 

 secretion, or in giving exercise to high fed, hard worked horses 

 that have been laid off work ; in changing only by slow grada- 

 tions thin, vigorous animals to a rich diet, etc. When the danger 

 is imminent prompt relief can be secured by the liberal abstrac- 

 tion of blood. Purgatives, diuretics, and restricted diet may be 

 applied to less urgent cases. 



HYDRO^MIA. ANEMIA OIvIG^MIA. 



Definition. Causes : bleeding, watery repair, hydrosetnia, repair of glob- 

 ules, changes in red globules, in bone marrow. Cause of chronicity : pro- 

 fuse secretions, ; moplasms ; parasites ; chronic exhausting diseases ; de- 

 fective diet or hygiene ; diseases of jaws or throat : overwork : toxic sub- 

 stances. Symptoms : pallid mucosas, weakness, perspiration, soft tissues, 

 small pulse, palpitation, anaemic heart — arterial and venous murmurs, depi- 

 lation, indigestion, costiveness, urine clear, abundant, emaciation. Lesions : 

 blood poor in globules, embryonic, and other abnormal red globules, fatty 

 degeneration, blood-clot. Treatment : remove causes, diet, hygiene, sun- 

 shine. 



Definition. Bloodlessness ; Deficiency of blood ; I^ack of red 

 blood globules. The last named is the condition to which the 

 term is habitually applied. 



Causes. Anaemia is not so much a disease, as a result of a 

 great many debilitating and exhausting conditions. Haemorrhage 

 the most direct cause of anaemia determines at first an actual lack 

 of blood (oligaemia) and of blood pressure, which may be suffi- 

 cient to cause fainting and death. In case of survival the amount 

 of blood is rapidl}^ made up by absorption from all available 

 sources of liquid in the economy, but the blood so restored is es- 

 sentially hydroaemic having an excess of water and a lack of glob- 



