146 EEPOKT OF OFFICE OF EXPERIMENT STATIONS. 



KENTUCKY. 



Kentucky Agricultural Experiment Station, Lexington. 



Department of the State University. 



M. A. ScovELL, M. S., Ph. D., Director. 



During the year the agricultural college of the State University 

 was organized, with the director of the station as director of the col- 

 lege of agriculture. Few changes in personnel were made. T. R. 

 Bryant, formerly assistant in animal husbandry, has been placed in 

 charge of the extension department of the college. George Roberts, 

 formerly chemist in the fertilizer division and agronomist, was made 

 head of the division of agronomy of the station. B. D. Wilson was 

 appointed assistant chemist, fertilizer division, vice AVilliam Rodes, 

 resigned. D. J. Healy was appointed bacteriologist and microscopist 

 with the beginning of the fiscal year 1910-11. 



A very complete laboratory was fitted out for the bacteriological 

 and microscopical work of the food and drug division of the station 

 and for other bacteriological work, especially that connected with the 

 study of milk fever under the Adams fund. 



Progress was made in laying out for experimental purposes the 

 $7,000 addition to tli« station farm. With a State appropriation of 

 $2,000 the construction of a plant for the manufacture of hog-cholera 

 serum was begun. 



Arrangements were made for cooperative work, especially in dairy- 

 ing, on a large stock farm near Lexington. In this way observations 

 and experiments can be made on a large number of selected animals 

 under favorable conditions. 



In the Adams-fund projects, considerable progress was made dur- 

 ing the year in defining the differences in the root nodule organisms 

 on different species and groups of leguminous plants. In this con- 

 nection a study of the morphology and relationships of bacterial 

 organisms producing nodules on the roots of alfalfa, sweet clover, 

 red clover, white clover, soy beans, and cowpeas was made. The addi- 

 tional data secured seemed to give further proof that the organism 

 of alfalfa is identical with that of sweet clover and is transferable 

 from either plant to the other but not to red clover, white clover, 

 soy bean, or cowpea; and that the organisms cf red clover, white 

 clover, and alsike clover are identical and can be transferred from any 

 one of these species to any one of the other two, but can not be trans- 

 ferred to cowpea or soy bean. The organisms of the soy bean and the 

 cowpea appear distinct. The number of broods of the corn-ear worm 

 was established and the organism involved in a hitherto unidentified 

 bacterial disease of growing tobacco was detemiined. In the soils 



