36 BULLETIN 36o_, U. S. DEPAETMEXT OF AGKICULTTJEE. 



]olior water. At 3.25 the pulse was fairly strong. At 4.25 he very 

 nearly succeeded in getting upon his feet. The muscles of the shoul- 

 ders and flanks were trembling much of the time. 



As he was much constipated, feces being discharged only once dur- 

 ing the day, he was given at 6 p. m. 12 ounces of Epsom salt as a 

 drench. At 9.10 p. m. he appeared very much brighter than at any 

 time during the day. Trembling was not so pronounced and the pain 

 was less. He breathed normally, held his head from the ground 

 and took notice of what was passing aroujid him. He was not seen 

 again until the morning of August 16. At 6.45 a. m. on August 16 

 he got up, ate a little hay and drank water. During the forenoon 

 of August 16 he lay down most of the time but occasionally got up 

 and walked from place to place. The improvement continued during 

 the afternoon and night. He still staggered when walking and re- 

 mained upon his feet only a few minutes, but could get up and down 

 at will. On the morning of August 17 there was still some trembling 

 of the surface muscles of the shoulders. Plate XI, figure 6, was 

 taken at 7.25 a. m. on August 17 when he appeared fairly normal. 



He was driven back into the pasture still showing weakness, 

 trembling, and staggering when hurried, but after this his recovery 

 was rapid and complete. 



EXPERIMENTAL FEEDING OF DELPJHINIUM BARBEYI TO CATTLE IN 1910. 



The experimental feeding of Delphlniurrh hwrheyi in 1909 had 

 indicated somewhat clearly the symptoms of poisoning and the 

 dosage so that the work of 1910 was largely directed to experiments 

 with various remedies. The discussion of these remedies is taken up 

 later in this paper. Table II gives a summary of the experimental 

 feeding of Delphinium harbeyi to cattle during this second summer. 

 Forty-three feeding experiments were conducted on 24 different 

 animals. Following is a detailed description of some of the more 

 typical cases. 



Case 612. 



Case 612 was a yearling heifer loaned for experimental purposes 

 and weighing about 500 pounds. From July 2 to July 5 she received 

 76.5 pounds of DelphiniuTn Ijarheyi, including leaves, stems, and 

 flowers. At 4.15 p. m. on July 5, as the animal had apparently felt 

 no effect from the feeding, an attempt was made to run her about the 

 corral. After being run about a few times she began to tremble, 

 her legs giving out, and she fell and was unable to rise. Respiration 

 was 60 and irregular and the pulse 160 and weak. At 4.20 she fell 

 over upon her side, the surface muscles contracting spasmodically. 

 At 4.24 the pulse was 100 and rather weak. At 4.27 she was given 



J 



