HOCKINGS' GARDEN MANUAL, 5 



A TABLE showing the Number of Tiles required for 



THOROUGHLY DRAINING AN ACRE OF LAND, ACCORD- 

 ING TO THE DISTANCE OF THE DRAINS. 



Length of 



Tile. 

 (Inches.) 



No. of Tiles per 

 Acre, the Drains 

 10 feet apart. 



No. of Tiles per 

 Acre, the Drains 

 12 feet apart. 



No. of Tiles per 

 Acre, the Drains 

 15 feet apart. 



No. of Tiles per 

 Acre, the Drains 

 17 feet apart. 



No. of Tiles per 

 Acre, the Drains 

 18 feet apart. 



No. of Tiles per 

 Acre, the Drains 

 20 feet apart. 



12 



4,356 



3,630 



2,904 



2,562 



2,420 



2,178 



DEEP TILLAGE. 



Deep Tillage has been reserved for the second 

 consideration, not because it is of less importance, 

 but because it would be useless without drainage. 

 Of what advantage would it be for a man to trench 

 his garden three feet deep if the earth stood full of 

 water? Premising, therefore, that nearly all soils 

 require draining more or less, and that as want of 

 drainage renders all other labor on the soil compara- 

 tively unavailing, it should be first attended to — we 

 will endeavor in a few words to impress upon culti- 

 vators the advantages of working the subsoil. 



The various plants, during their growth, use the 

 constituent parts of the soil in different proportions, 

 some requiring a preponderance of the alkalies, some 

 the phosphates, &c, and this fact accounts for the 

 exhaustion consequent upon continually growing the 

 same sort of crop in a field without intermission ; 

 some necessary food having been extracted from the 

 soil which is consumed by that plant, and it ceases to 

 remunerate the cultivator for his labor until he 

 manures his land — or, in other words, returns to the 

 soil similar ingredients to those he has carried away 



