112 AGRICULTURE ON THE PACIFIC SLOPE 



to get rid of the seed, but Mr. Burbank believes it is 

 better to keep it, as it gives flavor to the cooked 

 plum. 



By crossing the American daisy with the Japanese 

 and European, Mr. Burbank obtained the Shasta daisy, 



which is not only much larger, as shown in figure 61, 

 but has long stems and keeps a long time as a cut 



flower. A double 

 variety as shown in 

 figure 62 was made 

 by continued selec- 

 tion. 



In all these cases 

 of crossing only the 

 best plants are 

 sa/vecT Out of a 

 thousand perhaps 

 only one or two are 



FIG. 62. Double Shasta daisy. J 



saved. Ihe seeds 



of these are sown, and out of the plantf-Twhich come 

 from them only one or two of the very best are saved. 

 This is kept up until the right kind of plant is obtained, 

 or until it becomes certain that no good result is to be 

 expected. In that case the plants are all destroyed 

 and the work of years goes for nothing. New varieties 

 of corn, wheat, vegetables, fruits, and flowers are being 

 made all the time by these methods, and there is no 

 end to the new forms which man may thus produce. 



