CONTENTS xv 



PAGB 



The draft and power in plowing ..... 127 



Heavy teams do better work . . . . .128 



Horse, mule, and ox power ..... 129 



The power for plowing . . . . . .129 



Steam and electric power . . . . .129 



Greater power needed . . . . . .130 



Essentials of a good plow . . . . . .131 



The beam 131 



The mouldboard .131 



The coulter 132 



The jointer 132 



The beam-wheel 133 



The share 133 



The clevis 133 



When to plow 134 



The benefits of and the occasions for fall plowing . 134 



The critical time for spring plowing . . .135 



When plowing is dispensed with .... 136 



The usefulness of the different kinds of plows . . . 137 

 The landside plow . . . , . . . .137 



The swivel plow 137 



The sulky plow 138 



The gang plow 138 



The disk plow 139 



Adjusting the plow in the field ..... 140 



CHAPTER VII. HARROWING AND CULTIVATING 



The tillage of preparation . . . . . .142 



The objects of harrowing ...... 142 



Better harrowing needed . . . . . . .143 



The kinds of harrows and the influences of each . .144 



Each kind best for specific purpose .... 144 



The spike-tooth harrow . . . . . .145 



The spring-tooth harrow ...... 147 



The Acme harrow ....... 148 



Rolling harrows disk, cutaway, and spading . . 149 

 When the soil is ready to harrow , . . . . .151 



The kinds of cultivators and the usefulness of each . .152 

 The difference between a harrow and a cultivator . 152 



Shovel -tooth or coulter cultivator . . . .153 



Spike-tooth cultivator ....... . .153 



Spring-tooth cultivators , . . . . 154 



Sulky cultivators . . . . . .155 



Weeders 156 



