82 BULLETIN 365, TJ. S. DEPARTMENT OF AGRICULTURE. 
nate, atropin, or the combination of barium chlorid with caffein, 
sodio-benzoate and strychnin. The combination of physostigmin 
salicylate, pilocarpin hydrochlorid, and strychnin sulphate, used 
hypodermically, and supplemented as symptoms demand by hypo- 
dermic injections of whisky or dilute alcohol, would seem in the ma- 
jority of cases to produce beneficial effects. These remedies can be 
easily administered by stockmen upon the range, as they can be car- 
ried in solution in small compass and administered by the hypo- 
dermic syringe, with the use of which most stockmen are familiar. 
It can not be too strongly stated that when cattle fall from larkspur 
poisoning no attempt should be made to get them upon their feet, or, 
if they get upon their feet themselves, care must be taken that they 
should not be hurried under any circumstances. Many of the ani- 
mals when poisoned, if allowed to lie quietly with no other attention 
than to be turned so that the head will be higher than the rest of 
the body, will recover. 
As has been stated elsewhere, bloating seldom occurs in cases of 
larkspur poisoning. If it does, it should be relieved by paunching, 
and every stockman should be provided with a trocar to perform this 
operation. 
METHODS OF PREVENTING LARKSPUR POISONING. 
It is recognized that under ordinary range conditions many cases 
of larkspur poisoning occur which can not be prevented. The cattle 
are not under direct observation and may not be seen for weeks or 
months, and the first intimation of trouble is when the rider, in going 
over the range, finds bodies of animals that may have died long 
before. There is no opportunity to apply a remedy. It is possible, 
however, to save many cattle by proper handling in accordance with 
the conditions of the ranges upon which they are grazed. 
From the fact that the low larkspur dies early in July and ceases 
to be a factor in poisoning, it is very evident that if the cattle can be 
kept away from this plant until about July 1 there probably will be 
no fatalities. This has been recognized very generally by the stock- 
men. In some localities on the western slope of the Rocky Moun- 
tains in Colorado " riding for poison " is a regular business among 
the stockmen during the month of June. By this " riding " the cattle 
are kept below the poisonous area. until after the plants blossom. In 
some localities, also, through the instrumentality of the Forest Serv- 
ice, drift fences have been erected for the same purposes. 
There seems to be no question that if cattle can be kept away from 
the areas of low larkspur until the plant matures there will be no 
losses, but if they are permitted to graze freely upon these areas loss 
is almost certain to occur. These losses, of course, will be greater 
