CO.\Tl-:.\TS vu 



Kiln Ashes. Soot. Street Sweepinjrs. Potassium 

 Nitrate. Amtnoiiiuni Nitrate. Silicate of Potash. 

 Iron Sulphate. Common Salt. Powder Waste. Sul- 

 phates of Magnesia and Soda. Carbonate of Magne.sia. 

 Ammonium Chloride. Manganese Salts. 



CHAPTER XI — Lime, Gypsum and Green Manures. . 104-1 1 1 

 Lime. Forms of. When Soils Need Lime. How to 

 Find Out When Soils are Acid. How to Apply Lime. 

 The Form to Use. Amount of Lime to Apply. Le- 

 gumes Require an Alkaline Soil. Mechanical Action 

 of Lime. Lime Decrea.ses the Action of Some Fungus 

 Diseases. Gas Lime. Gypsum. Green Manures. 

 Classes of. The Best Time to Plow Under a Green 

 Manure. The Time to Grow a Green Manure. Deep 

 Rooted Plants Valuable. 



CHAPTER XII— Commercial Fertilizers 1 12-1 18 



Causes of the Large Consumption of Fertilizers. Fer- 

 tilizer Materials Used by Manufacturers. Basis of Pur- 

 chase. Unit and Ton Basis. Fertilizer Laws. The 

 Meaning and the Interpretation of the Guarantee. 



CHAPTER XIII— Valuation of Fertilizers 1 19-125 



Interpretation of Chemical Analyses. Agricultural 

 Values. Commercial Values. Trade Values. How 

 Obtained. A Discussion of the Table of Trade Values. 

 How to Calculate Commercial Values. 



CHAPTER XIV— Home Mixtures 126-133 



Definitions. Manufacturers' Claims Against Home 

 Mixing. Reasons Why Farmers Should Mix Fertili- 

 zers at Home. Home Mixing Acquaints the Farmer 

 with Materials Used. Home I\(ixing Does Away With 

 the Purchase of Unnecessary Constituents. How to 

 Mix Fertilizers at Home. How to Calculate Percent- 

 ages from Known Amounts. How to Calculate 

 Amounts from Known Percentages. 



CHAPTER XV— A Few Remarks about Fertilizers . . 134-143 

 Brand and Trade Names. How to Purchase a Ferti- 

 lizer. Study the Guarantee. Fertilizers Should Reach 

 their Guarantees. Fertilizers do not Deteriorate Much 

 on Standing. The Time to Apply Fertilizers. How 

 Fertilizers are Applied. Is it Profitable to Use Fer- 

 tilizers? Amount of Fertilizer to use. 



