318 Plant-Breeding 



A Study of the Fecundation of the Rotundifolia Grapes South 

 Carolina Station. 



Improvement of Hardy Wild Fruits of the Northwest by Breed- 

 ing and Crossing South Dakota Station. 



The Breeding of Apple and Pear Varieties for Resistance to 

 Blight Tennessee Station. 



Breeding Work with Blackberry Texas Station. 



Breeding Experiments with Apples Virginia Station. 



Mendelism of the Hybrids of Blackberries and Raspberries, 

 particularly with Reference to Leaf Structure and Habits 

 of Growth Washington Station. 



Pollination of the Apple West Virginia Station. 



Investigation of Mendel's Law as applied to Hybridizing the 

 White with the Black Varieties of Muscadine Grape 

 Georgia Station. 



Apple Breeding Investigations Idaho Station. 



Effects of Fertilizers on Cell Structure of Crops and their Rela- 

 tions to Mutations in Fruits, Vegetables, and Flowers 

 Maryland Station. 



Investigations on "Double Flower" and Sterility in Blackberries 

 and Dewberries North Carolina Station. 



Pollination of the Apple and Conditions affecting It Oregon 

 Station. 



In addition to the work of the experiment station men, 

 very much highly valuable work is under way by such 

 men as East at Harvard, Shull at Cold Spring Harbor, 

 Harper and Stout at the New York Botanical Garden, 

 Bradley Moore Davis at the University of Pennsylvania, 

 B. M. Duggar at the Missouri Botanical Garden, and many 

 others. This research is undertaken by well-trained 

 specialists who are producing the very highest type of 

 fundamental constructive results. 



