24 a EXPERIMENT STATION. [Jan. 



9. Influence of soil moisture on seed germination. 



10. Relation of light to burning from spraying with fungi- 

 cides and insecticides. 



11. ]^ature and cause of burning from fumigation with 

 various gases. 



12. Effects of electricity on nitrogen fixation in soils and 

 in stimulating plants in general. 



13. Relation of light to burning of vegetation from miscible 

 oils. 



14. Study of interrelation of stock and scion in apples. 



15. Plant breeding, especially mth peas, beans and squashes, 

 to determine the extent to which the Mendelian laws appear to 

 govern heredity. 



16. The relation of climate to variation in leading varieties 

 of apples. 



17. The economic importance of digger wasps in relation to 

 agriculture. 



18. Color vision in bees. 



19. The diagnosis of white diarrhoea in adult fowls. 



THE ASPARAGUS SUBSTATION, CONCORD. 



The year 1913 at the Asparagus Substation in Concord was 

 highly successful from the experimental point of view. Mr. 

 Prescott continued his effective service in general local charge, 

 and Mr. J. B. Norton of the United States Department of Agri- 

 culture, his enthusiastic breeding work. It will be remembered 

 that the experiments at this substation are in two distinct lines : 

 a study of the plant-food requirements of the crop and, second, 

 breeding experinients with a view to the production of a rust- 

 resistant type. 



Plant-food Requirements. 

 The crop on the plots where the fertilizer experiments are 

 located was the best produced in their history. The average 

 yield per plot in 1912 was 278.5 pounds; in 1913 it was 374.9 

 pounds. The rate of yield per acre in 1912, 5,570 pounds; in 

 1913, 7,498 pounds. The average yield per plot in 1913 was, 



