{"product_id":"a-text-book-of-the-physics-of-agriculture","title":"A Text Book of the Physics of Agriculture","description":"604 pp. Five pages of author ads follow text. Black-and-white illustrations. CONTENTS: Introduction; Physics of the Soil: Nature, Origin and Waste of Soil; Chemical and Mineral Nature of Soils; Soluble Salts in Field Soils; Physical Nature of Soil; Soil Moisture; Physics of Plant Breathing and Root Action; Movements of Soil Moisture; Conservation of Soil Moisture; Relation of Air to Soil; Soil Temperature; Objects, Methods and Implements of Tillage; Ground Water, Wells and Farm Drainage: Movements of Ground Water; Farm Wells; Principles of Farm Drainage; Practice of Underdrainage; Principles of Rural Architecture: Strength of Materials; Warmth, Light and Ventilation; Principles of Construction; Construction of Silos; Farm Mechanics: Principles of Draft; Construction and Maintenance of Country Roads; Farm Motors; Farm Machinery; Principles of Weather Forecasting: The Atmosphere; Movements of the Atmosphere; Weather Changes.","brand":"Mrs. F.H. King","offers":[{"title":"Default Title","offer_id":42046786240582,"sku":"2345932","price":25.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1232\/9510\/files\/2345932.jpg?v=1723743286","url":"https:\/\/ym-demo.myshopify.com\/products\/a-text-book-of-the-physics-of-agriculture","provider":"Yesterday's Muse","version":"1.0","type":"link"}