DISEASES AND TREATMENT OF THE HORSE 117 
14. Water in the Chest (Hydrothorax). 
This generally follows a case of pleurisy. In some cases 
there may be several pails of a watery fluid around the lungs 
Fig. 5. — A Horse Suffering from an Attaok of Water in the Chest (Hydrothorax.) 
in the chest cavity. When there is such a large quantity as 
this it generally ends fatally. 
Causes. — Pleurisy. 
Symptoms. — After the pain and soreness from pleurisy 
has passed off the fluid commences to collect around the 
chest. This causes heavy breathing, the nostrils becoming 
large, sometimes making a flapping noise. He breathes 
quickly, and draws in and out at the flank worse than during 
a bad case of heaves. The pulse becomes quicker than in 
pleurisy, and very weak, beating from 75 to 100 beats per 
minute. The blood in the jugular vein seems to flow back 
toward the head instead of flowing down, causing this vein to 
move every time he breathes. By putting your ear to the 
chest nothing can be heard except above the water. If loose 
he will try to move to the door or window to get the pure 
air. In some cases he will act like this for several days, not 
eating very much, and gradually getting worse. Near the 
last his ears and legs get very cold, and all other symptoms 
keep increasing. lie, however, tries to stand on his feet till 
the very last. 
