19 



head flat on the ground until after 5 : 10 p. in. At 5 : 50 p. m. she was 

 up and able to walk, but still quite weak. At 7 p. m. she appeared to 

 have fully recovered. 



Case No. 12 No. 61. 



A ewe weighing 100 pounds was fed 3 ozs. of air-dried leaves at 7 : 20 

 a. m. At 8 : 30 a. m. she was sick. Down on side with spasms at 9 : 30 

 a. m. ; respiration, 44; temperature, 103.6. Breathing was mainly 

 through the mouth. At 10 a. m. she was lying quietly on her side, 

 breathing hard and audibly. Died at 10 : 15 a. m. 



Autopsy showed considerable congestion of lungs and a few small 

 hemorrhages of the heart. Other organs presented no gross lesions. 



Case No. 13 No. 62. 



A ewe weighing 82 pounds was fed 2J ozs. of dry arrow-grass leaves 

 at 7 : 30 a. m. Sick at 8 : 03 a. m., having a peculiar twitching of the 

 muscles. Down on one side at 8 : 30 a. m. Frequent spasms occurred. 



Figure. 10. Calf dying in convulsions from Arrow-Grass poisoning. 



Respiration, 65 ; temperature, 104.2. At 8 : 45 a. m. respiration had 

 fallen to 28. Death took place at 9 a. m. 



Autopsy showed congestion of lungs and of the fourth stomach. 

 Other organs appeared normal. 



Case No. 11 No. 62. 



A ewe weighing 82 pounds was fed 4 ozs. of dry leaves, an ounce at 

 a time hourly in order to find out if the poison would be eliminated 

 fast enough so that poisoning symptoms would not develop. The last 

 feeding was at 4 : 20 p. m. and at 5 p. m. she was sick. The first notice- 

 able symptom was a trembling of the muscles of the legs ; respiration, 

 70. At 5 : 02 p. m. she was down, breathing through the mouth. She 

 remained in this condition until after 6 : 30 p. in. At 7 : 30 p. m. she 

 was up. walking around, but soon fell down again. She was soon on 

 her feet again, but at 7 : 40 she had another spasm and fell down. At 

 10 : 30 p. m. she was up and able to walk around, her gait was very 

 unsteady; the next morning at 7: 30 a. m. she appeared to have fully 

 recovered. 



