204 REPORT OF OFFICE OF EXPERIMENT STATIONS. 



economic ontoinolo<>:y with J. G. Sanders at the head, have also been 

 ()r<ranized. E. P. Sandsten, horticulturist, resigned his position since 

 the close of the fiscal year to follow commercial lines of work. 



The enlarfjement of facilities in which the station is partly inter- 

 ested consisted of the completion of a stock pavilion, costinfj: equijjped 

 somethiiifj over $80,000, the erection of a commodious stock and 

 foraire harn on the Hill Farm. 2 miles west of the university, and of 

 land purchased for the establishment of new horticultural grounds. 



Among the projects carried on with the Adams fund a study of the 

 leucocytes in milk and their sanitary significance was completed and 

 a report on the work was made in bulletin form. It was found that 

 the same organisms may not only persist in the udder of the cow 

 for long periods but may be present constantly in large numbers. 



A report was also made on the investigation of mineral constitu- 

 ents of feeding stuffs and the results thus far secured with inorganic 

 phosphorus, among other things, strongly point to a synthetic power 

 in the animal which enables it to convert inorganic forms of phos- 

 phorus into the organic forms required by the body. A depleted 

 phosphorous ration reduced the percentage of ash in the skeleton of 

 pigs nearly one-half as compared with a normal ration. "When the 

 low phosphorous rations were supplemented with calcium phosphates 

 no injurious etfects resulted. The results have led to the belief that 

 in general grain rations usually fed to hogs are too low^ in lime for 

 the best development of the skeleton. 



The project on the comparison of nutrients from single plant 

 sources and from different plants has shown thus far marked differ- 

 ences in the nutrition of young stock fed on wheat, oats, and corn, 

 singly and in combination. In general the corn-fed lot did better 

 than any of the other lots. A striking difference was observed in the 

 size and vitality of the young produced, the calves from the wheat- 

 fed lot being much lower in weight than those from the corn-fed lot. 

 The results are regarded as indicating that a chemical analysis by 

 itself is insufficient for balancing a nutrient ration properly. 



The study of the role of acid in Cheddar cheese was carried on in 

 cooperation with the Dairy Division of this Department. The re- 

 sults secured, permitting only a report of progress at the present 

 time, will be tried out on a large commercial scale before a definite 

 announcement is made. The results of analytical studies of some 

 factors aiding in the separation of whey from the curd in the vat 

 were carried on in connection with this work, and the data deter- 

 mined are being arranged for publication. 



"Work on the disposal of creamery sewage indicated that under 

 ordinary methods the curd and fat remain for 6 to 10 days but that 

 by a modification of the plan a more rapid decomposition is secured. 



