THIRTEENTH ANNUAL YEAR BOOK— PART XI 



567 



No. 1. — The cow sliown in the above picture is apparently liealthy. She does 

 not cough, her appetite is good, she seems strong and vigorous and 

 gives an unusually large quantity of milk. At the time her picture 

 was taken it was known that she had been tuberculous at least four 

 years and that she had been passing large numbers of tuberculosis 

 germs from her body at least three years. 

 Since it first became known that the cow is diseased she has given 

 birth to four calves. 



