ODUCTION 1

II. OXYGEN 13

III. HYDROGEN 28

IV. WATER AND HYDROGEN DIOXIDE 40

V. THE ATOMIC THEORY 59

VI. CHEMICAL EQUATIONS AND CALCULATIONS 68

VII. NITROGEN AND THE RARE ELEMENTS IN THE ATMOSPHERE 78

VIII. THE ATMOSPHERE 83

IX. SOLUTIONS 94

X. ACIDS, BASES, AND SALTS; NEUTRALIZATION 106

XI. VALENCE 116

XII. COMPOUNDS OF NITROGEN 122

XIII. REVERSIBLE REACTIONS AND CHEMICAL EQUILIBRIUM 137

XIV. SULPHUR AND ITS COMPOUNDS 143

XV. PERIODIC LAW 165

XVI. THE CHLORINE FAMILY 174

XVII. CARBON AND SOME OF ITS SIMPLER COMPOUNDS 196

XVIII. FLAMES,--ILLUMINANTS 213

XIX. MOLECULAR WEIGHTS, ATOMIC WEIGHTS, FORMULAS 223

XX. THE PHOSPHORUS FAMILY 238

XXI. SILICON, TITANIUM, BORON 257

XXII. THE METALS 267

XXIII. THE ALKALI METALS 274

XXIV. THE ALKALINE-EARTH FAMILY 300

XXV. THE MAGNESIUM FAMILY 316

XXVI. THE ALUMINIUM FAMILY 327

XXVII. THE IRON FAMILY 338

XXVIII. COPPER, MERCURY, AND SILVER 356

XXIX. TIN AND LEAD 370

XXX. MANGANESE AND CHROMIUM 379

XXXI. GOLD AND THE PLATINUM FAMILY 390

XXXII. SOME SIMPLE ORGANIC COMPOUNDS 397

INDEX 421

APPENDIX A Facing back