TABLE OF CONTENTS 



CHAPTER I 



PAGE 



ELEMENTS, ATOMIC WEIGHTS, MOLECULES, SYMBOLS, MOLECULAR 



WEIGHTS, OXIDATION, REDUCTION 1 



Chemistry Elements Composition of Matter Atomic 

 Weights Molecules of Elements Symbols Molecular 

 Weights Oxidation Combustion Kindling Temperature 

 Spontaneous Combustion Reduction. 



CHAPTER II 



COMPOUNDS, MIXTURES, VALENCE, FORMULAS AND EQUATIONS 13 



Conservation of Matter Compounds Mixtures Valence 

 Formulas Hydrates Criss-cross Rule Equations. 



CHAPTER III 



ACIDS, BASES, SALTS, ANHYDRIDES, DISSOCIATION, AND NOMEN- 

 CLATURE 24 



Groups of Elements Classes of Compounds Acids Bases 

 Salts Anhydrides Dissociation Nomenclature of Com- 

 pounds. 



CHAPTER IV 



THE ELEMENTS NECESSARY FOR PLANT GROWTH 32 



Oxygen Hydrogen Carbon Nitrogen Phosphorus 

 Sulphur Potassium Calcium Magnesium Iron. 



CHAPTER V 



WATER, SPRINGS, WELLS, HARDNESS AND HOUSEHOLD WATER .... 44 



Properties of Water Solvent Action of Water Availability 

 of Plant Food Drinking Water Hardness in Water Fil- 

 tered Water Boiled Water Distilled Water Boiler Water. 



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