This book is a comprehensive account of the Australian grasslands and of their capacities for providing adequate nutrition for grazing animals, the products of which, whether as wool, meat, or dairy products, are important in the national economy. The wool and beef industries were established on indigenous grasslands and in many areas, particularly in the drier parts, are still dependent on native plants. Problems of sustaining the productivity of arid and semi-arid lands and of increasing the output of higher rainfall areas are discussed.