Trelease — An UniLSual Phyto-Bezoar. 497 



died from an accumulation of spines in the mouth and stomach, 

 an effect somewhat comparable with that caused by the awns 

 of Hordeum when cattle feed upon these. 



Considering that in the West and Southwest of our own 

 country, as well as in Mexico, Opuntias are not infrequently fed 

 to cattle in considerable quantities, it is surprising that other 

 cases similar to the one here recorded have not been reported, 

 but to my knowledge they have not. 



Isiued November 30, 1897. 



