, HARDENING AND ADAPTATION 



ing of the number of genuses and species, but 

 in the analogous method to which he submits 

 all of them. And so this method is by him 

 carried to the highest degree of perfection, 

 while at the same time the results are so im- 

 mense that they receive the admiration of the 

 whole world. His plums and prunes, adapted 

 for canning and drying, have a quality and a 

 productiveness such that, in spite of the cost 

 of preparation and the expense of transporta- 

 tion, they are competing with splendid success 

 in Europe with the kinds there cultivated and 

 are a source of revenue for large stretches of 

 country, which they carry up to a hitherto 

 unknown state of prosperity. The production 

 of such varieties, therefore, has the greatest 

 direct influence upon the growth and progress 

 of agriculture and horticulture. It promises 

 work for thousands of people and to the most 

 enterprising amongst them it gives a chance 

 for the rapid acquisition of wealth." 



This appreciation on the part of one of the 

 foremost scientific men m the world is in 

 direct line with the appreciation which Mr. 

 Burbank receives in letters from practical 

 fruit-growers from all over the world. 



203 



