The period of settlement and transformation, 1776 to 1860; Development of commercialized agriculture 1860 to 1914; Agricultural adjustments to war and peace 1914 to 1950; Agriculture as an industry; the basis of demand for farm products; Prices of farm products; Prices of farm products; Marketing of agricultural products-scope services and agencies; Costs of marketing agricultural products; Cooperation in agriculture; Foreign trade in agricultural products; Agricultural finance; Taxation and the farmer; Land use and soil conservation; Farm management; farm records and their use; rural people.

History of the wine industry in California during the nineteenth century: its growth and decline due to a financial depression and the invasion of the vine disease phylloxera; its recovery to become an important part of the agricultural economy of the state.

The Everett Eugene Edwards Papers include Edwards' writings, speeches, bibliographies, administrative information related to his position at the United States Department of Agriculture (USDA), materials for courses he taught, and historical materials that he may have used for research.

The study attempts to detect and discuss the most urgently needed changes, as to resource distribution, production methods and supporting services in Brazilian agriculture. For that, it was necessary to describe and evaluate the existing situation in rural Brazil, a task taken up in the first part of the study. Discussion covers production factors, the place of agriculture in the national economy of Brazil and the general aspects of agricultural production. A series of tables and diagrams shows the production per state and the trends in area and average yield for the period 1939-1949 for the most important products.Part two of the study considers some well defined problems and inadequacies of the existing situation in agriculture in more detail. The most urgently needed improvements in the production of some important crops are enumerrated.For some problems and inadequacies, solutions are suggested and an attempt is made to assess the consequences of modernization in Brazilian agriculture.

The study attempts to detect and discuss the most urgently needed changes, as to resource distribution, production methods and supporting services in Brazilian agriculture. For that, it was necessary to describe and evaluate the existing situation in rural Brazil, a task taken up in the first part of the study. Discussion covers production factors, the place of agriculture in the national economy of Brazil and the general aspects of agricultural production. A series of tables and diagrams shows the production per state and the trends in area and average yield for the period 1939-1949 for the most important products.Part two of the study considers some well defined problems and inadequacies of the existing situation in agriculture in more detail. The most urgently needed improvements in the production of some important crops are enumerrated.For some problems and inadequacies, solutions are suggested and an attempt is made to assess the consequences of modernization in Brazilian agriculture.

The study attempts to detect and discuss the most urgently needed changes, as to resource distribution, production methods and supporting services in Brazilian agriculture. For that, it was necessary to describe and evaluate the existing situation in rural Brazil, a task taken up in the first part of the study. Discussion covers production factors, the place of agriculture in the national economy of Brazil and the general aspects of agricultural production. A series of tables and diagrams shows the production per state and the trends in area and average yield for the period 1939-1949 for the most important products. | Part two of the study considers some well defined problems and inadequacies of the existing situation in agriculture in more detail. The most urgently needed improvements in the production of some important crops are enumerrated. | For some problems and inadequacies, solutions are suggested and an attempt is made to assess the consequences of modernization in Brazilian agriculture.

A soil survey in the Y-polders was combined with studies of yield of sugarbeet on different soils. Subsoil differences were shown to be the most important factor. Topsoils in the Y-polders proved to be uniform in composition and to consists of young Ysselmere clay (underwater deposits) with a lutum (clay) content of 35-40%. The thickness of the clay layer proved to be very varied. Sands, peat, peat detritus, peaty silt were the materials of which the subsoil was built up through an intricate history of sedimentation. Therefore soils were classified on clay thickness and subsoil characteristics.To test the agricultural value of this classification, yields of various soil types were compared in the polders and on some soils of the Haarlemmermeer. This data proved that high humus contents caused low contents of sugar. The influence of decalcified topsoils and cat-clay subsoils was not important in 1949 because of the weather. Coarse sandy subsoils and heavy layers had much influence; maximum yields were achieved on soils with 75 cm Y clay. A suitability scheme for sugar- beets was derived from the data.

A soil survey in the Y-polders was combined with studies of yield of sugarbeet on different soils. Subsoil differences were shown to be the most important factor. Topsoils in the Y-polders proved to be uniform in composition and to consists of young Ysselmere clay (underwater deposits) with a lutum (clay) content of 35-40%. The thickness of the clay layer proved to be very varied. Sands, peat, peat detritus, peaty silt were the materials of which the subsoil was built up through an intricate history of sedimentation. Therefore soils were classified on clay thickness and subsoil characteristics.To test the agricultural value of this classification, yields of various soil types were compared in the polders and on some soils of the Haarlemmermeer. This data proved that high humus contents caused low contents of sugar. The influence of decalcified topsoils and cat-clay subsoils was not important in 1949 because of the weather. Coarse sandy subsoils and heavy layers had much influence; maximum yields were achieved on soils with 75 cm Y clay. A suitability scheme for sugar- beets was derived from the data.