LUTHER BURBANK 



achievement will be suggested in ensuing chapters. 

 Here let it suffice to repeat that the series of 

 experiments in which the giant spineless fruiting 

 Opuntias were developed was in some respects the 

 most painful, arduous, and difficult of all my long 

 series of plant developments; and that there is 

 reason to believe that its results will ultimately vie 

 with the results of any other single experiment in 

 economic importance. 



Here is a new species of 

 spineless giant cactus which 

 towers to almost tree-like 

 proportions, and grows with 

 such rapidity as to produce, 

 on good agricultural land, 

 from one hundred and fifty 

 to three hundred tons of new 

 forage to the acre annually, 

 by the third season after 

 planting, besides nearly 

 one-half as much fruit. 



