HydrotEmia. Anaemia Oligamia. 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 usual of 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 OLIGEMIA. 



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

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

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

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

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

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

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

 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 appUed. 



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

 great many debilitating and exhausting conditions. H aemorrhage. 

 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 rapidly made up by absorption from all available 

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

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



