188 EXPERIMENT STATION. [Jan. 



Animal killed June 8, 1908; autopsy at time of slaughter. Body 

 fairly well nourished, weight 900 pounds (estimated). No external 

 lesions except on prominent parts that came in contact Avith the cement 

 floor. About one pail full of watery material, brown in color, escaped 

 from mouth after death. An abundance of fat found on removal of 

 skin; muscle tissue red in color and well developed. On opening 

 abdominal cavity no alterations found. Urino-genital organs normal in 

 size and texture. Bladder contained about one pint of straw-colored 

 urine. Kidneys firm, and gross portions represented nothing abnormal. 

 Ureters pervious. First, second, third and fourth stomachs all con- 

 tained food material in abundance, consisting of well-masticated hay 

 and grain. First and fourth stomachs contained an abundance of 

 watery fluid; second stomach contained 15 to 20 shingle nails, some- 

 what eroded ; contents of third stomach not as dry and hard as usually 

 found, still sufficiently firm to retain shape when removed from organ. 

 Mucous membranes firm and adherent in all parts; that of the fourth 

 stomach slightly reddened. Intestines, both large and small, smooth and 

 glistening on outer portion ; walls not thickened but somewhat red- 

 dened. Mucous membrane firm and dark in color. Contents thin and 

 semifluid. Liver dark red, firm and well filled "with blood. Vessels 

 open. Gall bladder large and distended with one quart of dark green, 

 ropy bile. Bile duct pervious. Spleen firm and free from any gross 

 lesions. Lymi^hatics and blood vessels of the abdominal cavity showed 

 no abnormalities. Thoracic cavity, heart and lungs free, and pleural 

 surfaces smooth and glistening. Lungs light and puffy and of a dark 

 pink color. On manipulation six or eight hard areas, size of English 

 walnut, found in lung substance. On section these hard areas were 

 found to contain yellow caseous material, surrounded with thick Avail of 

 fibrous tissue. Lungs on section found filled with air. Air tracts con- 

 tained some frothy material. Pericardium smooth and normal in 

 thickness; on section found to contain one ounce of serous fluid. Heart 

 muscle firm and uniformly red in color. Little blood present in any of 

 the cavities. Bronchial and mediastinal lymph glands size of English 

 walnuts, hard and firm, and on section dotted throughout with yellow 

 areas and distinctly calcareous. Trachea and oesophagus normal. 

 Mouth contained about one pound of coarse, partially masticated hay, 

 apparently returned fi-om stomach at or shortly prior to time of death. 

 Tongue, teeth and throat oi-gans free from lesions. 



Diagnosis: tuberculosis and slight gastro-enteritis. 



