The Principles of Field Drainage (Paperback)

Preface; List of illustrations; 1. Former neglect of drainage work. Measures of government assistance; 2. The history of field-draining developments in Great Britain; 3. The moisture properties of soil. The incidence of drainage; 4. Percolation. Permeability. The water table. The special case of clay land; 5. Drainage conditions in the field. (Soil and site factors. The main types of drainage circumstances); 6. The use of published maps in field-drainage work; 7. The investigation of field-drainage problems; 8. Ditches; 9. Tile draining. Methods and principles. Renovation of old systems. Design and materials; 10. Mole draining. Suitable soils, details, causes of failure, machinery, procedure; 11. The way in which drains work. Rates of flow from outfalls; 12. Drainage of aerodromes, sports grounds and field fortifications; 13. Field drainage, river flow and floods; 14. Field drainage. Present position and progress; Appendix; Some useful data; A bibliography of field drainage; Index.