230 LUTHER BURBANK 



It was found feasible to combine some desir- 

 able qualities, but we did not succeed in combin- 

 ing all the desired qualities in a single variety. 



There is greater variation as to flavor among 

 lettuces than is commonly supposed. Of course, 

 the different types are used for different pur- 

 poses and at different seasons. Those grown 

 under glass must be compact growers, while those 

 grown in the open may be permitted to develop 

 larger heads. There are varieties of so-called 

 perpetual lettuce which have been so educated 

 that instead of running to seed they form new 

 heads that can be cut again and again. 



As to all these matters there is room for great 

 improvement, and there is opportunity for the 

 plant experimenter whose experience justifies 

 him in working with a somewhat difficult species 

 to secure better varieties of this very popular 

 salad plant than any at present on the market. 



DANDELION AND THISTLE 



There are other wild species of the Composite 

 family, however, that offer greater inducements 

 to the cultivator. One of these is the familiar 

 dandelion, a plant usually regarded as a weed, 

 but really having possibilities of usefulness. 



The dandelion is sometimes used as a green 

 vegetable in the early spring by country folk in 



