soil on hill-sides. Reclamation of barren lands. Alkali soils. 

 Peat-burning and moor-culture. Preservation of coast-land and cul- 

 tivation of sand-dunes. 



XV. Artificial water-storage. Irrigation. Utilising underground- wa- 

 ter. Land-drainage. 



Legislation regarding the use of water in agriculture. 



XVI. Tillage. Tilth. Influence of tillage, of drainage and of soil- 

 conditions generally on root-development. Economy of soil-mois- 

 ture Trenching. 



XVII. Fallowing. The resting of the soil. Soil sickness. -Control of 

 soil-bacteria. Soil inoculation. Special bacterial cultures used for 

 increasing fertility. Paring and burning. Heat and antiseptics as 

 soil-improvers. 



XVIII. Theories of fertiliser action. Experiments with fertilizers. Ex- 

 perimental fields. General considerations on field experimentation. 

 The effect of manures on soils and on vegetation. Influence of 

 manures on different crops. Manuring in regard to climate. 



XIX. Organic fertilisers. 



Green manuring. Sea-weeds and other vegetable refuse as a manure. 



Composts. Peat in manuring. 

 Dung and Urine. Farmyard manure. Night soil. Utilisation of 



town-sewage. Animal refuse as manure. Guanos. 

 Manure value of cattle-feeds. 



XX. Chalking, Marling and Liming. - Gypsum as a corrective of soils. 

 Other soil-correctives. 



XXI. Special fertilisers. Nitrates. Ammonium Salts. Lime-cyana- 

 mide. Artificial fixation of free nitrogen. Phosphatic fertilisers. 

 Bone meal and bone ashes. Mineral phosphates. Superphosphates. 

 Basic slag, etc. Potassic manures. Stassfurt salts. Wood ashes. 

 Other substances used as fertilisers. 



XXII. Manufacture of fertilisers. Examination and valuation of ferti- 

 lisers. Frauds in the sale of fertilisers. Trade in fertilisers. Le- 

 gislation regarding fertiliser- trade. 



Valuation of unexhausted manurial residues in soils. 



XXIII. Systems of culture. Rotation of crops. Culture systems in special 

 climatic or soil conditions. Dry-Farming. Irrigation farming. 

 Electro-culture. Action of crops on the soil. 



XXIV. Agricultural Seeds. Composition, ripening, vitality and germi- 

 nation of seeds. Examination of seeds. Frauds in the seed-trade. 



Legislation regarding the sale of seeds and of plants, or of living 

 parts of plants. 



XXV. Crops and experimentation connected 'therewith. 



Corn Crops and other; Food-grains. Root and tuber plants for food 



and forage. 

 Grasses and leguminous forage crops. Meadows and Pastures. Hay. 



Ensilage. 



