EXPERIMENT STATION REPORTS. 183 



September 2. — Tested 9 cows near Zeeland on farm of J- 



K . Five reacted. Stables and watering facilities in most un- 

 hygienic condition. 



September 5. — Near Adrian, drew 4 samples of blood from horses re- 

 ported on account of suspicion of glander-s. Serum tests resulted nega- 

 tively. An examination of a portion of lung tissue said to have come 

 from a glandered horse on this farm resulted in revealing emphysema 

 only. 



At Onsted, found a severe outbreak of hog cholera. Serum treatment 

 was used on neighboring farm. 



September 6. — Drew blood from horse near Kalamazoo noted under 

 August 30. Serum tests resulted negatively. 



September 7. — Killed a heifer at Bath. Actinomycosis of the tongue. 



September 11. — A cow at Hope susjjicious of being tuberculous was 

 slaughtered at owner's refjuest. The cow was in excellent physical con- 

 dition. All the subcutaneous lymph nodes were greatly enlarged, show- 

 ing very prominently, especially the parotid, submaxillary, prescapular, 

 precrural and supramammary. Internally, the same condition was found. 

 The lymphatics of the sublumbar region approached the size of the 

 animal's liver. The Avail of the uterus (pregnant) was gi'eatly thickened 

 Avith lymphatic tissue. It Avas reported that similar cases had occurred 

 in the neighborhood. We had recently seen a case on a farm near the 

 college. Diagnosis : Hodgekin's disease. 



September 2.5. — Tested 8 cows at Atlas. No reactions. 



October G. — Examined horse at Cambridge. Horse very weak in hind 

 quarters. Temp. 103°. Eating fairly well. Coat thin and soft. Mu- 

 cosae pale, slightly yelloAvish. Slight oedema of sheath and interaxillae 

 and stocking of legs. Heart enlarged and impact of beat felt over entire 

 thorax. Respirations labored at least exertion. Action of bowels and 

 kidneys appeared normal. Jugular blood A-ery thin, coagulated sloAvly. 

 Erythrocytes fomied about one-fifth of volume at bottom of bottle, 

 buflfy coat contained particles like disintegrated erythrocytes. 



On October 11, horse Avas unable to stand. Temp. 98°. No appetite 

 since October 6. Blood from jugular showed fewer erythrocytes and 

 less coagulability. Little oedema. Appeared weak as from hemorrhage. 



Autopsy: Brain pale, meninges slightly oedematous, slight ecchy- 

 moses in subcutem, oedema variable, lymph nodes generally oedematous 

 and hemorrhagic, thymus very hemorrhagic (larger than normal), lungs 

 considerably oedematous and emphysematous Avith rupture of air sacs, 

 also ecchymoses on A-isceral pleura of cephalic lobes. The chambers 

 of the heart are greatly dilated but the Avails are not hypertrophic, 

 slight sub-epicardial hemorrhage and epicarditis of left side, pericardial 

 sac contains about one liter of amber-colored fluid; liver is enlarged 

 and engorged with blood ; pancreas normal ; spleen greatly enlarged 

 with tense capsule and pulp like blackberry jam, splenic lymph nodes 

 hemorrhagic, enlarged and oedematous, gastro-intestinal tube nearly 

 empty, kidneys greatly enlarged and oedematous, bladder distended with 

 pale urine. Diagnosis: Infectious anaemia. 



This horse had been sick since June, 1911. The owner had lost two 

 cases previously. 



October 26. — Injected 9 cc. of blood serum from above described case 

 into jugular vein of horse belonging to the veterinary department. Tem- 



