Tuberculosis. 119 



more rapidly. This advance may be largely accounted for by the 

 fact that the infecting expectorations brought up with the cough 

 is largely swallowed to affect stomach and bowels. The animal 

 has now diminished, and capricious appetite, irregular, infre- 

 quent, slow rumination and slight bloating after meals. The body 

 temperature is more variable and more frequently high than in 

 the slighter forms. 



In the advance stages of lung tuberculosis everyone can recog- 

 nize the consumptive animal. It is miserably poor and wastes 

 visibly day by day, the dry coat of hair stands erect, the harsh 

 scurfy skin clings tightly to the bones, the pale eyes are sunken 

 in the sockets, tears run down the cheeks, a yellowish, granular, 

 foetid and often gritty discharges flow from the nose, the breathing 

 is hurried and catching, the breathe foetid. The cough is weak, 

 painful and easily roused by pinching the back or breast or strik- 

 ing the ribs. Tapping the ribs with fingers or fist and applying 

 the ear detect far more extensive changes including in many 

 cases evidences of blowing into empty cavities (vomicae) and loud 

 gurgling. Temperature may vary from below normal to 107° 

 Fahr. 



In all such cases there is extension of the disease to distant 

 organs and symptoms as given below complicate those of lung 

 disease. To give means of diagnosis of tuberculosis from some 

 diseases of the lungs which most resemble it in symptoms (lung 

 worms, hydatids, actino-mycosis, lymphadenitis, etc.,) would 

 unduly extend this article without corresponding advantage to 

 my present class of readers. 



Tuberculosis of stomach , dowels and mesenteric glands. In young 

 animals living on milk, tuberculosis of the bowels and glands 

 give rise to indigestion, foetid diarrhoeas, bloating, and finally 

 enlargement of the superficial lymphatic glands and the affection 

 of the lungs if the animal should survive long enough. In older 

 cattle there is impaired irregular appetite and rumination, slight 

 bloating after meals, a tendency to scour when liberally grain 

 fed, costiveness alternating with scouring, colics, and usually a 

 more pronounced wasting than with the lung disease. The oiled 

 hand introduced into the last gut may detect the enlarged mesen- 

 teric glands which must be carefully distinguished from hardened 

 fgeces in the bowels from the ovaries, from masses of fat, etc. 



