DISEASES AND INJURIES OF THE LEGS. 187 



SPRING HOCK. 



Definition. — An inflamed condition of the ligaments of the hock 

 bones. 



Etiology. — A violent strain generally affecting all the ligaments. 



Symptoms. — Sudden and great swelling both above and below the 

 hock, though not so much on the hock itself. This is accompanied by 

 heat and extreme lameness. 



Treatment. — Put the animal in slings at once, as it will not volun- 

 tarily lie down. A dose of physic: 



Aloes 3 vi. 



Gentian 3 ij. 



Foment the swelling several times daily with hot water in which a 

 little laudanum has been mixed, to relieve pain and to reduce the swell- 

 ing: 



Laudanum § ij. 



Water 1 quart. 



After the inflammation has subsided, the biniodide of mercury oint- 

 ment may be smeared on the hock: 



Biniodide of mercury 1 i. 



Lard § viij. 



CAPPED HOCK. 



Definition. — Synovial capjjcd hooh is a firm, fluctuating swelling on 

 both sides of the point of the hock, causing lameness and sometimes de- 

 cay of the top of the os calcis. 



Serous ccvp'ped liooh is a serous abscess in the areolar tissue between 

 the gastrocnemius internus tendon and the skin (Figs. 93 and 94), and 

 is generally caused by striking the point of the hock against some hard 

 object, as in kicking. 



Treatment. — Apply cooling lotions, as: 



