+300. Introduction of Swiss and Limburger.+--In 1870, factories for Limburger, Swiss and Brick cheese were started and have gradually increased. In New York such plants are located around Boonville in Oneida County, and Theresa, in Jefferson County. In Wisconsin, Swiss cheese-making was begun by a colony of Swiss who came to New Glarus, Green County. It is now made in Green, Lafayette, Iowa, Grant, Dane and Rock counties. Limburger and Brick are manufactured in Dodge, Fond du Lac, Winnebago, Marathon, La Crosse, Buffalo, Trempealeau, Clark, Washington, Dunn, Barron and Lincoln counties. In the southeastern part of Ohio Swiss cheese is produced. Ohio and Wisconsin have manufactured more of these cheeses, especially Swiss, than any other states. This is probably due to the fact that the conditions are more nearly like those of Switzerland. When the cities in New York began to grow, an increased demand for market milk was felt. The result was that the dairy-men could not supply both the cities and the cheese factories with milk. A large part of the cheese was being exported and most of it had always been partly skimmed. The amount of skimming, therefore, was largely increased. Then other animal fats were substituted for the milk-fat. This product was known as "filled" cheese. The delay in controlling the practice of making skimmed-milk and filled cheese ruined the export trade. In Canada laws prohibited the making of filled cheese and as a consequence Canadian Cheddar cheese is still very popular in England. However, with the control of skimmed-milk cheese-making and the elimination of filled cheese, the volume continued to grow and to find outlet in local consumption. New York probably exported more cheese than any other state. Wisconsin shipped cheese into other regions, especially the southern states in which no cheeses were made. Some Wisconsin cheeses were shipped to the New York market from time to time, but in October, 1913, the first quotations[133] were made in New York City for Wisconsin products. +301. Number and distribution of cheese factories.+--The following list and maps (Figs. 65, 66) compiled in 1914 by the United States Department of Agriculture Dairy Division, show the number of cheese factories in the different states and their location: [Illustration: FIG. 65.--Map showing the distribution of cheese factories in the principal cheese-producing states.]