16 NEW TRACKS IN NORTH AMERICA. 
ultimate results. At the end of three months he also began . 
to pick up, and eventually recovered without any abscess 
or sloughs having taken place. I saw one horse, which 
had been bitten in the leg, literally covered with sloughy 
gangrenous ulcers; these healed, however, and he ultimately 
recovered. 7 { 
There is a little weed common throughout the Western 
country called by Engelmann Euphorbia lata, by Torrey 
Euphorbia dilatata, which is said to be a specific for the bit 
of the rattlesnake. A doctor, whose name I forget, ha 
published an account of his experiments with this plant; he 
gave a strong infusion of it to a dozen dogs which were i 
different stages of collapse from snake bites; all recovered 
but one, and he could not swallow the drug. At the very 
time when I wanted this plant I could not find it, although 1 
met with it everywhere along our route. 
