THIRTY-EIGHTH ANNUAL CONVENTION 131 



No. 1. Physical Examination of Cattle. 



Cattle for experiments were taken from low land districts, 

 with exception of No. 54, which was an emaciated cow. All 

 others were in good physical condition. In some cases (Nos. 50 

 and 54) physical examination revealed a languid, dull appear- 

 ance of the eyes. Other symptoms by which tuberculosis could 

 be diagnosed, such as spontaneous coughing, a tough hide bound 

 condition of the skin, a dry, stiff, lustreless coat of hair, was only 

 found in a few cases (Nos. 3, 11, 22, and 50 to 54). The physic 

 cal examination of the accessible lymph glands was found affected 

 in only one case. In this particular animal No. 51, the left pre- 

 scapular gland was the size of a man's head and was hard and 

 rough to the touch. In connection with the physical examina- 

 tion of these animals, auscultation of the lungs was done in 

 order to ascertain the deep breathing. The mouth and nose 

 were temporarily covered with a leather cloth saturated in a solu- 

 tion of lysol. 



No. 2. Securing Lung Sputum. 



After auscultation and physical examination all suspicious 

 animals were subjected to the previously described method of 

 obtaining sputum. The cough produced by the introduction 

 of the swab into the trachea is helpful inasmuch as it forces the 

 slime into the trachea that would be otherwise inaccessible. On 

 the other hand post mortem examinations have revealed to us 

 that the cot-ton swab can be inserted into the diseased parts and 

 the diseased parts may be removed on the swab. This was 

 especially noticeable in a case where the lobe of the diaphragm 

 was affected. Occasionally when removing the swab through 

 the trocar pieces of tissue would adhere to it and upon bacterio- 

 logical examination was found to contain tubercle bacilli. 



No. 3. Post Mortem Examination After Slaughter. 



As soon as the sample was obtained from the lungs the ani- 

 mal was slaughtered and a careful post mortem made. 



