170 REPORT OF OFFICE OF EXPERIMENT STATIONS. 



work were published in Bulletin 200 of the station. A study was 

 undertaken of the unit characters of Rotundifolia grapes, and about 

 2,400 seedlings were grown for observation. 



The station pursued numerous lines of work with the Hatch fund. 

 The agronomist tested 59 varieties of corn, 39 of cotton, 14 of wheat, 

 23 of oats, 26 of cowpeas, 21 of soy beans, 11 of adzuki beans, and 2 

 of seta beans. The results of the station tests with corn during the 

 past few years have indicated that the relative standing of the differ- 

 ent varieties is greatly modified by the fertility of the soil and the 

 distance of planting. Promising results were secured with adzuki 

 beans, the yield of seed per acre being better than cowpeas. Last 

 year these beans required less than 100 days from planting to 

 maturity. 



In animal husbandry experiments were conducted to determine the 

 value of cottonseed meal as a concentrate for horses, mules, and beef 

 cattle, and the results secured in this work have largely been pub- 

 lished. Other work of this department included experiments to de- 

 termine the value of corn silage, corn stover, and cottonseed hulls as 

 roughage for beef cattle, breeding experiments with swine, and a 

 stud}^ of the value of different crojDS for pork production. Rye, oats, 

 barley, and a mixture of these crops with rape, crimson clover, 

 Canada field peas, soy beans, and cowpeas gave good results as graz- 

 ing crops for hogs, and sweet potatoes, peanuts, and artichokes proved 

 to be desirable root crops for this purpose. The poultry work at the 

 station included the study of breeds and of systems of feeding and 

 management. In dairy husbandry feeding experiments were con- 

 ducted with cottonseed meal as a feed for heifers and young calves. 

 A comparison was made of a mixture consisting of equal parts of 

 corn meal, oats, and wheat bran, and of one made up of equal parts 

 of cottonseed meal, oats, and wheat bran. The roughage used con- 

 sisted of a mixture of corn silage and hay. 



The animal pathologist pursued studies on fowl cholera, especially 

 with reference to the effectiveness of vaccination against this disease. 



In addition to the Adams fund work the entomologist conducted 

 experiments to determine the breeding places of the common house 

 fly and the effectiveness of different materials recommended for kill- 

 ing the larvae in their breeding places. A 40 per cent solution of 

 formalin in milk or in milk and water was used successfullv in killing 

 flies around dairy barns and dwelling houses. 



Cooperative experiments with farmers in the mountain region of 

 North Carolina were carried on to determine the suitability of sugar 

 beets for that section both with reference to yield per acre and per- 

 centage of sugar developed in the beets. With this department co- 

 operative experiments were made with tobacco to secure wilt-resistant 

 strains. Other cooperative work with this department consisted of 



