24 HISTORY AND DEVELOPMENT 



against costly butter defects and in raising the standard of ex- 

 cellence of the product. 



The dairy schools have placed in the field, during -the last 



25 years, hundreds of trained men annually, whose influence has 

 worked for substantial and permanent improvement of the 

 manufacturing processes and the extension work done by state, 

 government and commercial concerns has been of special service 

 in assisting the producer of cream to produce more economically, 

 to stimulate larger production, and to improve the quality of the 

 raw material. 



The organization and activities of local, state, government 

 and international dairy and creamerymen's associations, unions 

 and federations have been important agencies in promoting dairy 

 interest, enthusiasm and progress. They have been instrumen- 

 tal in the formulation and passage of dairy laws fostering the 

 dairy industry, combating disease among dairy stock, prohibit- 

 ing unsound practices, such as fraudulent testing of milk and 

 cream, damaging schemes of unscrupulous creamery promoters, 

 and adulterations of dairy products, establishing the regulation of 

 transportation rates on milk and cream and controlling creamery 

 competition and the sale of butter substitutes. They have 

 assisted, with competent council, state and government officials 

 in the establishment and enforcement of dairy standards and laws. 

 They have stimulated the consumption of butter and other dairy 

 products by organized campaigns, to acquaint the consuming 

 public with the great food value, unexcelled wholesomeness and 

 true economy of these products as articles of the human diet. 



All of these varied agencies of investigation, education and 

 control, which, through liberal state and government subsidies, 

 and through active and generous support of commercial insti- 

 tutions and public-spirited individuals have multiplied speedily, 

 both in numbers and activity, during the last score of years, 

 have served as an additional and mighty impetus in the sub- 

 stantial and rapid development and the permanent prosperity 

 of the butter industry. 



Influence of the Creamery Promoter. Soon after the intro- 

 duction of the centrifugal separator and up to recent years the 



