100 LUTHER BURBANK 



In a quite different class are the peas and 

 beans, which in all their varieties are obviously 

 related to one another and quite as obviously 

 distinct from all the other members of the gar- 

 den coterie. 



The onion and its allies may be recognized as 

 constituting a class of vegetables that supply 

 savor rather than nutritious principles. From the 

 standpoint of the gardener there may be listed 

 a number of less familiar plants to make up the 

 category of vegetables that are grown merely 

 because of their appeal to the palate and for 

 the flavor that they impart to other foods rather 

 than for their genuine food value. 



Two other prominent plants which complete 

 the list of the ordinary garden vegetables of 

 greatest popularity are classed together by the 

 botanist, and indeed are to casual observation 

 closely similar in foliage, yet so distinct as to the 

 character of their product that the gardener per- 

 haps would hardly think of associating them. 

 These are the potato and the tomato — own 

 cousins — notwithstanding the widely different 

 character of the food products they supply. 



Some of the plants just named will be given 

 individual treatment in successive chapters of 

 the present volume. But two or three com- 

 panies, including a wide range of species and 



