CONTENTS 



CHAPTER. PAGE. 



INTRODUCTION . vii 



I. WHO SUGGESTED THE IDEA OF GROWING PLANTS BY 



ELECTRICITY ? i 



II. A BRIEF REVIEW OF SOME EXPERIMENTS .... 5 



III. THE AUTHOR'S EXPERIMENTS ....... n 



IV. ATMOSPHERIC ELECTRICITY . . . . . . .16 



V. ELECTRICITY AND MARKET GARDENING 20 



VI. FORCING BY ELECTRIC LIGHT . ... ... 24 



VII. THE MERCURY VAPOUR LAMP . . . . . . 29 



VIII. How DOES ELECTRICITY AFFECT THE GROWTH OF PLANTS ? . 33 



LIST OF ILLUSTRATIONS 



ERECTING THE OVERHEAD WIRES ..... Frontispiece 



FIELD WITH OVERHEAD WIRES .... . . Page 3 



NON-ELECTRIFIED WHEAT FIELD ........ 6 



ELECTRIFIED WHEAT FIELD 7 



LODGE-NEWMAN DISCHARGE APPARATUS 13 



ONE OF THE GIANT INSULATORS ........ 15 



MERCURY-VAPOUR LAMP IN GREENHOUSE ...... 18 



ARGENTINE BEANS ........... 20 



COMPARISON OF GREENHOUSE TRIALS ....... 22 



TOMATO PLANTS ..... 26 



THE AUTHOR'S EXPERIMENTAL HOUSE ...... 30 



ONE OF THE EARLY IDEAS ......... 34 



