Cactus in training. 



CHAPTER XXIX 

 OPUNTIA'S TRAINING 



The master of the plant school saw what a great work 

 could be done to reclaim the desert regions of the earth if 

 he could but rid Opuntia of thorns and prickles. The vast 

 dry plains, now barren and useless, would yield a new food 

 for both man and beast, for the cactus is nearly all food 

 and drink. Burbank's quick eye saw beneath the rough 



exterior, behind the thorns, a tender heart, and not only 



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