GENERAL DISEASES. 107 



sation or diminution of work suddenly m well-fed animals 

 is also a common cause, as is seen in frequent occurrence of 

 this disorder among heavy draught-horses after a Sunday's 

 rest. The disease has in consequence been named the 

 * Monday-morning disease.' 



Sudden or prolonged exposure of horses to cold or damp 

 will in many cases bring on an attack by suddenly disturb- 

 ing the digestive and assimilative functions ; and indeed 

 any sudden change in the work or habits of the animal 

 may bring on an attack. 



Lymphangitis may also occur as the result of a local 

 inflammation of the lymphatics of the limbs, or other parts 

 of the body, as the result of an injury. In the limbs, an 

 injury to the foot, in shoeing, for example, may result in an 

 attack of the lower portion of the limb. This local form 

 does not commence above in the brachial or inguinal 

 glands, as in the general disorder, but spreads upwards 

 along the lymphatic vessels. 



Symptoms. — The local inflammation of the limbs is 

 frequently preceded by a rigor, which may last during 

 some hours ; and the severity of the disease is shown as a 

 rule by the intensity and duration of this shivering fit. 



There is restlessness and lameness at an early stage; and 

 after the rigor has passed, the hot stage follows. The 

 fever is of the sthenic type, and passes quickly through its 

 various stages. The pulse is raised to 70, 90, or 100 

 beats per minute, and it is hard, full, and firm. The re- 

 spirations, though not increased in mild cases, are much 

 accelerated in severe attacks, and sweats bedew the body. 

 The visible mucous membranes are congested ; the bowels 

 are constipated ; the urine is dark-coloured and of high 

 specific gravity. The temperature is raised 2 '5' to 3*5" F.; 

 the appetite is lost, and there is great thirst and rest- 

 lessness. 



