96 ANNUAL. REPORTS OF DEPARTMENT OF AGRICULTURE. 



qiiulity proved to be higli. Seven supervisors and 00 inspectors were 

 engaged in this ^York, whicli involved over 9,000,000 pounds of but- 

 ter produced in 119 creameries. The butter was produced largely in 

 Minnesota, Iowa, and California, with smaller quantities from Wis- 

 consin, Michigan, and Pennsylvania. 



When the Government commandeered butter held in storage in the 

 ])j'incipal markets of the United States, the butter allotted to the 

 Navy was scored by department representatives at the request of the 

 Na^y Department. 



INSrECTION OF RENOVATED-BUTTEB FACTOP.IE.S. 



The supervision of renovated-buttor factories, consisting of an in- 

 spection of the sanitary condition of the factories and the approval 

 of wrappers and cartons used, was cond\icted at 15 plants, whose out- 

 put for the fiscal year amounted to 10,667,455 pounds. This is a de- 

 cline of 14 per cent from the preceding year and of 62.75 per cent in 

 10 years. 



MILK INVESTIGATIONS AND DEMONSTRATIONS. 



SANITARY SURVEYS OF C]1Y MILK SUPPLIES. 



Surveys on the sanitation of the milk supplies of several cities were 

 made. These surveys were more detailed than in former j'ears and 

 took into consideration the source and handling of the milk supply, 

 together with laboratory and inspection methods used in safeguard- 

 ing its quality. Detailed bacteriological tests were made in many in- 

 stances, and considerable help was given to the city authorities in 

 the preparation of new milk ordinances. In the course of this work 

 478 dairy farms and 415 city milk plants were inspected, 3.532 bac- 

 terial counts were conducted, and 95 chemical tests were made. 



SANITARY SURVEYS OF MILK SUPl'LIES FOR ARMY AND NAVY'. 



Sanitary inspection work for safeguarding the milk supplies of 

 Army cantonments and naval bases and hospitals was continued and 

 extended at the request of the United States Public Health Service. 

 Careful and thorough investigations of the source and handling of 

 rnilk were made, and raw milk, sour milk, and repasteurized milk 

 vrere excluded. This work was done in 9 cantonment zones, with spe- 

 cially complete surveys at Houston, Waco, and San Antonio, Tex., 

 and Lawton, Okla. 



MILK CONTESTS. 



Each year the milk contest is proving itself more valuable as a 

 n.cans of improving the city milk supply and keeping the quality 

 at a high standard. During the year five contests Avere held in five 

 States and a total of 264 samples of milk and cream were given a 

 complete score. Criticisms and suggestions for improvement were 

 made to exhibitors. 



MILK-PLANT MANAGEMENT. 



The work in milk-plant management consisted largely of personal 

 assistance in the operation of milk plants and help in the organizing 

 of central plants. Assistance of various kinds Avas also given by 

 correspondence, including the drawing of numerous special floor 



