,24 
Colorado Experiment Station 
Figs, 17 - 18.—17, leaf and flowering group of white hellebore; 18, wild onion or garlic, 
often mistaken for death camas. 
Treatment .—The treatment that has given the best results is 
potassium permanganate. Chestnut and Wilcox report, as a result 
of their experiments, that it is effective both as a chemical and physio^ 
logical antidote. For sheep, three to six grains, according to the size 
and age of the animal, of potassium permanganate and an equal 
weight of aluminium sulphate are dissolved in at least a pint of water 
and given at one dose by drench. Twenty grains of each dissolved in 
a quart of water constitute a dose for an average sized horse, and 
thirtv to fift}^ for cattle. 
It is very important that all of the potassium permanganate be 
dissolved, otherwise flakes ma)^ adhere to the walls of the throat or 
stomach, and cause intense irritation. Some stockmen make a prac¬ 
tice of carrying this antidote in their saddlebags, ready for immediate 
use, during the spring months when there is the greatest danger of 
poisoning from camas. This practice is to be recommended since the 
antidote is equally effective for poisoning by larkspur, and larkspur 
and camas are most dangerous at about the same time in the early 
spring months. 
