The purpose of the third symposium organised by the Advisory Committee on Nutrition and Crop Husbandry _of the Rank Prize Funds was to explore in some depth the complex processes whereby organic and inorganic materials reach man's diet, paying particular attentiThe purpose of the third symposium organised by the Advisory Committee on Nutrition and Crop Husbandry _of the Rank Prize Funds was to explore in some depth the complex processes whereby organic and inorganic materials reach man's diet, paying particular attentiEcological Concepts and Their Relevance to Human Nutrition.- Mans Demand for Energy.- World Production of Organic Matter.- Secondary Production in the Oceans.- Secondary Production from Land.- Amino Acids: Production by Plants and the Requirements of Man.- The Nitrogen Economy of Marine and Land Environments.- Mans Impact on Environmental Systems.- Man and the Major Mineral Elements.- Uptake of Some Major Mineral Elements by Plants.- Trace Mineral Elements, Mammalian Requirements and Mans Presumptive Needs.- Trace Elements in Soils and Plants.- Trace Elements in the Marine Environment.- Support Energy from Fossil Fuels.- Radioactive Materials.- Radioactive Materialsthe Aquatic Environment.- Pesticides and Other Man-made Chemicals and the Food Chain.- Implications of the Intensification of Agriculture for Ecological Problems.- Implications for Human Health and Nutrition and the Research That Needs to be Done.- List of Participants.Springer Book Archives