CONTENTS xi 



APPENDIX i-vii 



Fertilizer equivalents i 



Some fertilizer formulas ....... i 



To destroy insects iii 



To prevent or decrease diseases of plants . . . . iv 



To measure grain approximately ..... iv 



Dimensions of one acre ....... v 



State Agricultural Experiment Stations . . . . v 



School gardens vi 



INDEX . . . ix-xiv 



