PEA FAMILY. 69 
were observed and forcible grinding of the jaws, these 
symptoms preceding a spell of walking. © The pulse, at 
first irregular, became normal on the second day, and 
later very rapid and weak. Respiration also became pro- 
gressively more rapid during the course of the disease. 
Death occurred on the morning of the fourth day, after 
a period characterized by muscular twitchings and in- 
ability to stand. 
No satisfactory cure has been found for loco disease. 
Sheep that have acquired the habit, if taken in time, 
may be removed from Loco-infested areas 
and converted into mutton by the use of plen- 
tiful feed of a succulent nature. They should never be re- 
turned to the range, however, as they will at once begin 
again to eat the Loco. Horses that have been affected 
are never safe afterward, becoming frightened or vicious 
at most unexpected times. 
Hundreds of thousands of dollars have been spent in 
attempts to rid the sheep ranges of Loco Weeds, but the 
results have been unsatisfactory. If care is 
taken to remove at once any sheep that 
has become locoed, no great losses will occur. One ex- 
perienced sheepman is said by Chesnut and Wilcox to 
have lost so many sheep from Loco Weed that he decided 
not to continue the business. He sold his ranch to a 
stranger, who stocked it with sheep from another part 
of the country and had no trouble. The new flock con- 
tained no locoed animals from which the healthy ones 
could learn the habit. 
There are thirty-four species of Oxytropis listed from 
western North America and of these twelve are reported 
from parts of Canada. Several have been 
proved poisonous, the one most commonly 
blamed being Oxytropis Lamberti Pursh. All species 
Treatment 
Prevention 
The Plants 
