The past half-century has been the Golden Era of the da i ry industry. Dairying is so big that the amount of money involved, the number of people who depend upon it for a living, and the extent of the service that it gives are hard to comprehend. Dairying has t ruly become a business giant that exe r t s a g r e a t influence upon the economic, nutritional, and p o l i t i c a l we l f a r e of peop le a l l over the world. The dairy industry of the United States sells more than five b i l l ion dollars worth of products annually (9). This involves more than 8,000 dairy plants, employing approximately 225,000 peop le , who a re p a i d J. J. Sheuring more than $300,000,000 annually in salaries (9). Dairy plants spend more than four billion dollars each year for milk, materials, fuel, electricity, equipment, and supplies (9). At least 6,500 equipment manufacturers and jobbers sell more than $450,000,000 worth of their products to the dai ry industry each year (3). More than 200,000 trucks are needed to move milk from the farm to the plant and thence to the consumer (2). The dairy enterprise includes the production, procurement, processing, storage, and distribution of butter, cheese, concentrated milk products, ice cream, ices, sherbets, plastic cream, and other special products derived from milk. Some dairies also distribute eggs, candy, salad dressing, margarine, and other food products not directly related to milk.