Harry helstrip nicholson (2 risultati)

Condizione: Good. 1944. Reprinted. 165 pages. No dust jacket. Brown cloth covered boards. Pages remain clear with minimal tanning and foxing. End-papers are more notably tanned. Previous owner's inscription and ink stamp to front paste-down. Binding remains firm. Cracking to hinges, no damage to end-papers. Boards have mild edge wear with slight rubbing to surfaces. Mild crushing to spine ends. Sunning to spine and board edges. Spine mottled. Boards have minor damp and dust stains.…

orig. cloth Rubbed. Binding corner bumps. Good. 12pp photoplates. 21x14cm, xi,165,(12)pp Contents: Former neglect of drainage work. Measures of Government assistance; The history of field-draining developments in Great Britain; The moisture properties of soil. The incidence of drainage; Percolation. Permeability. The water table. The special case of clay land; Drainage conditions in the field. (Soil and site factors. The main types of drainage circumstances); The use of published maps in field-drainage work; The investigation of field-drainage problems; Ditches; Tile draining. Methods and principles. Renovation of old systems. Design and materials; Mole draining. Suitable soils, details, cuases of failure, machinery, procedure; The way in which drains work. Rates of flow from outfalls; Drainage of aerodromes, sports grounds and field fortifications; Field drainage, river flow and floods; Foeld drainage. Present position and progress. Rubbed. Binding corner bumps. Good. …