PREFACE - INTRODUCTION - CONTENTS - I. HISTORY OF SOIL-LESS GARDENING - II. ADVANTAGES OF PLANT CHEMICULTURE - III. THE FUNCTION OF PLANT CHEMICULTURE - IV. THE RELATION OF CHEMICALS TO PLANT AND ANIMAL LIFE -V. CHEMICALS NEEDED BY PLANTS - VI. GERMINATION -VII. FORMULAS FOR NUTRIENT SOLUTIONS -VIII. EXPLANATION OF USE OF FORMULA -IX. SUGGESTIONS IN PREPARATION AND USE OF FORMULAS, AND CONTROL OF TANK CULTURE -X. CONSTRUCTION OF TANKS -XI. AERATION -XII. ACIDITY VERSUS ALKALINITY -XIII. SAND CULTURE -XIV. PROPER ENVIRONMENT: TEMPERATURE, HUMIDITY AND VENTILATION -XV. HOW TO MAKE CUTTINGS -XVI. ROOT-GROWING SUBSTANCES OR HORMONES AND AUXINS -XVII. DIRECTIONS FOR TREATING CUTTINGS WITH AUXIN (PLANT GROWTH HORMONE) -XVIII. BUDDING AND GRAFTING -XIX. THE CONSTRUCTION AND OPERATION OF GREENHOUSES -XX. SYMPTOMS OF PLANT FOOD DEFICIENCY AND EXCESS IN PLANTS -XXI. DESCRIPTION OF DEFICIENCY SYMPTOMS IN APPLE TREES -XXII. REACTION OF PLANTS TO CHEMICALS -APPENDIX - WHAT TO PLANT AT THE SEASHORE AND IN MOUNTAINS -WHAT TO PLANT IN SHADY AREAS -FLOWER PLANTING CALENDAR -BULB PLANTING CALENDAR -VEGETABLE PLANTING CALENDAR -COMMON GARDEN INSECTS OF CALIFORNIA AND METHODS OF CONTROL -CHEMICAL ANALYSES OF LOS ANGELES WATER -COMPOSITION OF CHEMICAL FERTILIZERS USED IN NUTRIENT SOLUTIONS -APPROXIMATE TABLE OF MEASUREMENTS -COMMENSURATION TABLES -ATOMIC WEIGHT TABLE -POSITIVE IONS -NEGATIVE IONS -CHEMICAL ELEMENTS IN THE HUMAN BODY -VITAMINS AND MINERALS ESSENTIAL TO LIFE -HOW TO TEST FOR COMMON METALS OR CATIONS -TESTS WITH ORGANIC REAGENTS -TESTS FOR METALS -HOW TO MAKE MICROCHEMICAL TESTS -CHEMICAL TESTS FOR AMATEURS -PERCENTAGE COMPOSITION OF FOODS -Vegetables -Cereals -Fruits and Nuts -Animal Origin -STATE FLOWERS -AGRICULTURAL EXPERIMENT STATIONS IN THE UNITED STATES -REFERENCES - ACKNOWLEDGEMENTS - GLOSSARY OF SCIENTIFIC TERMS - INDEX -