142 REPORT OF OFFICE OF EXPERIMENT STATIONS. 



The operations of the station have been greatly extended with the 

 aid of the State appropriation of $30,000 for the biennium 1910-11. 

 The veterinary building was completed and to a large extent equipped 

 during the year. Dairy barns were remodeled and additions made 

 to the poultry plant. New silos were also built and the station herds 

 of live stock were enlarged, 



A large amount of work was done during the year on a number of 

 imiDortant Adams-fund projects, largeW, however, in continuation 

 of well-established lines of investigation. Many of these projects 

 have now progressed to a point where they are jdelding results of 

 great scientific value and are indicating important new lines of work. 

 The new projects to which attention was given during the year in- 

 clude investigations on the green bug and the influence of nutrition 

 on the form of growing animals, the latter, however, being a continua- 

 tion and extension of investigations pursued for a number of years 

 by President Waters at the Missouri station. 



The investigations on the green bug dealt especially with the be- 

 havior of this insect under varying conditions of temperature and 

 moisture. A similar line of investigation was followed with the Hes- 

 sian fly and plant lice injurious to wheat and corn. Ingenious pieces 

 of sj^ecial apparatus have been devised for the prosecution of these 

 inquiries. 



The investigations on cerebritis in horses were extended during the 

 year to include observations on cornstalk disease, but no decided 

 progress was reported. The bacteriological studies of hog cholera were 

 confined largely to inquiries as to the possibility of using a horse 

 serum vaccine. The supervision of the inoculation experiments was 

 turned over to the veterinary department, which gave a large share 

 ot its attention during the year to the pre]3a ration and distribution 

 of serum for the prevention of hog cholera according to the method 

 proposed by the Bureau of Animal Industry of this department. 



The wheat-breeding investigations were continued as heretofore 

 on an extensive scale, the botanist cooperating Avith the chemist in 

 a study of the relation between hardness of wheat and protein con- 

 tent. In connection with this work it was ascertained by a thorough 

 investigation of two pure strains of wheat, the one hard, the other 

 soft, that a correct average or mean crushing point accurately ex- 

 pressing in grams the degree of hardness of the particular races 

 under investigation, was reached by taking the mean of the crush- 

 ing points of 350 kernels. The mean crashing points for the two 

 strains under investigation were 6,817 and 11,802 grams, respectively, 

 for a total of 2,700 kernels each. The accordance of the results in 

 these two cases indicates that the facts disclosed are probably gen- 

 eral. A machine was designed for use in connection with this work, 

 which, while accurate as to results, it is realized must be modified to 



