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3 0 t Geography and evolution of territorial sizes of farms in the- United States. . Chart 44. The all land area per farm in 1920. Dia- gramm 22. Changes in the size of the all and of the im­ proved area per farm in the United States. - Chart 45. Changes in the average all area per farm. Chart 46. The same for improved land. Between the- process of intensification and the changes in the average area per farm there exists a negative connection. According- to the Census of 1920 between the geography of intensity (by States) and the geography of the size of the whole land area per farm the coefficient ol correlation was—0.717. Intensification calls for the reduction of the average di­ stance from the fields to the farmhouse in order to cheapen: the cost of transportation. The Geography and evolution of the economic size of farms. -Chart 47. The gross agricultural income per farm- in 1920. Chart 48. The average value of the farms in 1920. Diagram 23. The dynamics of the average value of the farms in the United States in real dollars. x Chart 49. Changes in the real value of the farms. Chart 50. Changes in the size of the gross income per farm in real dollars. Geographically and dynamically,, between the intensity and the economic size of the farms there exists no appreciable correlative connection. Ways and forms of concentration of agriculture. The sys­ tem of rent relations in agriculture in the Unites States. The productional and social basis of rent. Hired labour in the agri­ culture of the United States. The degree of development of hired labour as compared with agriculture in Western Europe and in Russia. The mistakes of the russiah „family" theory of peasant farming. Between the farm and the peasant economy there are no qualitative distinctions. The effect of.-the size of agricultural enterprises upon their efficiency in North America and in Russia. Электронная Научная СельскоХозяйственная Библиотека