282 POISONOUS AND MECHANICALLY INJURIOUS PLANTS 



lowed by death from exhaustion. Large quantities of ergot are 

 required to cause fatal results. 



As soon as evidence of poisoning appears the animals must be 

 removed from the infected plants. A regular dose of Glauber's 



2 





,7^/v^ 



Fig. ios. — bracken FERN {Pteridium aquilinum). 



salts should be administered to aid in eliminating the poison. 

 As the poison must be gradually eliminated from the system, 

 the results of treatment are necessarily slow. 



