1896.J MICROSCOPICAL JOURNAL. 337 



rr. THE APPEARANCES OF BLOOD IN TUBERCULOUS CATTLE 



AND TESTS. 



The appearances of blood in kine at Knacher's yard, 

 condemned to die on account of tuberculosis, by the New 

 York state commission of Veterinary Surgeons. 



Present Dr. Austin Peters, Mass., Dr. Johnson, New 

 York city, Dr. Curtis and by invitation E. Cutter, Green- 

 bush, New York, Dec. 16, 18'.)2. 



No. 1 Old bull. Capillary blood from smooth skin be- 

 neath the tail, showed spores and spore collects of myco- 

 derma aceti or vinegar yeast. Otherwise normal. Pro- 

 nounced by me tuberculosis. 



Per Contra. The veterinary gentlemen noted the 

 post-mortem appearances in all these cases, and to make 

 no mistakes the written results were exchanged with 

 mine some two weeks later. 



The following is the veterinary report: ''No. 1 Bull. 

 Tuberculosis of both lungs (extensive) and mediastinal 

 lymphatic glands." 



Remarks. This is a wonderful report; when it is known 

 that the bull could not be felled by repeated blows of an 

 ax, and with difficulty killed by revolver shots at ranges 

 of al)Out an arm's length. Tlie bull showed a marvelous 

 vitality, which would have stood in good avail, had he 

 been treated for cure. His difficult death should encour- 

 age efforts to cure such cases. Had we such vital resis- 

 tance in human cases we could make a better showing. 



No. 2 Cow. Specimen not well collected, due to the 

 thickness of skin, exposure to cold and raw atmosphere, 

 shrinking from the fear of the kine in their unwonted 

 environments. They acted as if they knew something 

 was wrong. They tried to escape and run away. I have 

 noticed this condition in other cases, the contraction acting 

 like a sieve to restrain the red blood corpuscles and suffer 

 the serum to flow only. Still there were found a few 

 collections of mycoderma aceti and some masses of colloid. 



