18 CONTENTS. 



CHAPTER III. 



CLASSIFICATION AND ADAPTATION OF SOILS. 



Section I. Classification of soils; Section 11. Adaptation to different 

 fruits — Varieties of the apple, apricot, berberry, cherry, currant, fig, 

 gooseberry, grape, peach, and nectarine — Varieties of the pear, 

 plum, quince, raspberry, strawberry 79 



CHAPTER TV. 



DEAINING THE SOIL. 



Method by which the soil is supplied with moisture : rain, springs — 

 Description of different strata — Capillary attraction — Methods by 

 which water is removed: running off its surface — Evaporation — 

 Percolating through its substance — What lands require drainage — 

 The direction of the drains — The distance — The depth — The 

 material to be used — Number of tile to the acre — Manner of 

 operation — The effects of drainage : promoting pulverization — 

 Prevention of injury by drought — Increase of the absorption of 

 moisture — Ventilation — Permitting the warm spring showers to 

 enter the soil — Freezing the land deeper — Deepening the soil — 

 Destroying weeds — Causing a more hardy growth — Production 

 becomes more certain 90 



