658 



MANUAL OF POISONOUS PLANTS 



dose of turpentine and milk were given and the animal remained standing until 

 11 :30, then it fell down as before. A full dose of aconite was given, but no 

 results noticed and then a hypodermic injection of nitro-glycerin was given. 

 Death occurred at 11 :4S and spasms were almost continuous. 



The most interesting discovery made by Prof. Hedrick was in regard to the 

 apparent harmlessness of the roots while growing during the summer. 



Prof. Hedrick says concerning the roots fed to an animal early in May: 



The bulbs were of the same lot used in the first experiments, but had been growing- for 

 a month in a green house. It was expected that growth would remove some of the danger- 

 ous properties of the bulbs, but it was a surprise to find that an animal eating many times 

 as much of them as had killed the cows in the previous experiment suffered no ill effects 

 whatever. The conclusion is obvious; the bulbs are only dangerously poison when in the 

 dormant state, or for a short time after growth begins in the spring. Cattle are likely, 

 then, to be poisoned only from the first of January to the middle of May. 



{ Cicuta Bolanderi Watson. 



Leaves bipinnate, leaflets narrowly lanceolate, long acuminate, acutely ser- 

 rate, lower leaflets petiolate and often deeply lobed ; involucre of several linnear 

 leaflets ; fruit 2 lines long, nearly orbicular, strikingly ribbed, and broad oil tubes. 



Distribution. In salt marshes along the Pacific coast in California. 



Poisonous properties. Like those of the preceding species. 



Fig. 375. Water Hemlock (.Cicuta bulbifera). 

 A powerfully poisonous plant. (Ada Hayden.) 



