LARKSPUK POISONING OF LIVE STOCK. 51 
parts of the Cochetopa and Uncompahgre National Forests. It is 
more nearly related to the Delphinium barbeyi than to Delphinium 
menziesti, and should be classed as one of the tall larkspurs. The 
entire feeding experiment with this plant was carried on at the ranch 
of A. J. Hack, of Parlins, Colo. Two animals, Nos. 629 and 630, were 
used for feeding. 
The feeding began at 7.15 a. m. on August 22. 1910. No. 630 ate 
very little of the larkspur and was not affected by it. No. 629, weigh- 
ing about 500 pounds, ate on August 22 about 20 pounds, which in- 
cluded leaves, stems', flowers, and seeds. No effect was produced, and 
at 6 a. m. on August 23 she seemed to be all right with the exception 
of constipation, but at 10.35 she was found down on her side and 
unable to rise. She struggled when approached, but was unable to 
raise herself even upon her belly. At 10.40 respiration was 32 and 
somewhat irregular. There was some trembling of the muscles of 
the sides and some salivation. At 10 :45 the pulse was 80 and weak. 
At 11.10 respiration was 50, very irregular and shallow. At 11.31 she 
arose without any marked difficulty, but at 11.37, after being run 
about, she went down again, trembling before she fell. With assist- 
ance she got upon her feet and started to run, but fell again. She 
was up again, at 11.42 and during the rest of the day seemed to be 
all right. In the evening she was given more of the Delphinium 
robustum, it being estimated that she ate about 8 pounds. On the 
morning of August 24 -she was found down and unable to rise. A 
little later she arose with some difficulty, but fell, getting upon her 
feet again at 6.35, when she immediately fell and was unable to rise. 
At 6.40 she got up and walked away. She started to run and fell, 
but immediately got upon her feet, only to fall again, trembling as 
she fell. At 6.45 she got upon her feet and walked about in a normal 
manner. She was seen frequently during the forenoon and seemed 
to be all right, with the exception of some constipation. 
It will be noticed that the symptoms as recorded are exactly com- 
parable with those found in the cases of poisoning by Delphinium 
barbeyi and Delphinium menziesii. 
EXPERIMENTAL FEEDING OF DELPHINIUM CUCULLATUM TO CATTLE. 
During the summer of 1912, at the Greycliff station, Delphinium 
cucullatum was fed experimentally to six head of cattle with resulting" 
symptoms of poisoning in four, none of the cases resulting fatally. 
One was only slightly sick and received no remedy. The second was 
treated with arecoline with no apparent good results, but recovered 
after treatment with magnesium sulphate, a glycerin enema, and a 
hypodermic injection of whisky. The others were treated in the rou- 
tine way worked out at Mount Carbon with physostiginin and pilo- 
carpin and recovered. The symptoms were strictly comparable with 
those produced by the other species of Delphinium and it does not 
