Draining for Profit, and Draining for HealthOrange Judd Company, 1902 - 252 páginas |
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Página 5
... Porosity or mellowness . - Chemical action in the soil . CHAPTER III . - HOW TO GO TO WORK TO LAY OUT A SYSTEM OF DRAINS . Amateur draining . - Maps . - Levelling instruments . - Outlets and loca- tion of drains . - Main drains ...
... Porosity or mellowness . - Chemical action in the soil . CHAPTER III . - HOW TO GO TO WORK TO LAY OUT A SYSTEM OF DRAINS . Amateur draining . - Maps . - Levelling instruments . - Outlets and loca- tion of drains . - Main drains ...
Página 8
... porous . The term puddling will often be used in this work , and the reader will understand , from this explanation , the meaning with which it is em ployed . sufficient tests should be made before the outlay for so DRAINING FOR PROFIT ...
... porous . The term puddling will often be used in this work , and the reader will understand , from this explanation , the meaning with which it is em ployed . sufficient tests should be made before the outlay for so DRAINING FOR PROFIT ...
Página 12
... porous . If , however , we proceed to " examine one of the smallest particles of which soil is “ made up , we shall find that even this is not always solid , " but is much more frequently porous , like soil in the mass . " A ...
... porous . If , however , we proceed to " examine one of the smallest particles of which soil is “ made up , we shall find that even this is not always solid , " but is much more frequently porous , like soil in the mass . " A ...
Página 13
... pores , -those between the particles of soil , " municate most freely with " each other , so that they " form canals , the small " pores , however freely they 66 may communicate with 66 one another in the interior " of the particle in ...
... pores , -those between the particles of soil , " municate most freely with " each other , so that they " form canals , the small " pores , however freely they 66 may communicate with 66 one another in the interior " of the particle in ...
Página 14
... pores and canals are no longer " represented white , but black , this color being used to in- " dicate water ; in this instance , therefore , water has taken " the place of air , or , in other words , the soil is very wet . " If we ...
... pores and canals are no longer " represented white , but black , this color being used to in- " dicate water ; in this instance , therefore , water has taken " the place of air , or , in other words , the soil is very wet . " If we ...
Otras ediciones - Ver todas
Draining for Profit, and Draining for Health George E 1833-1898 Waring Sin vista previa disponible - 2015 |
Términos y frases comunes
accumulated acre agricultural allow basin bottom brick bushels carried cause Central Park cents chapter clay collars commenced condition connection considerable contour lines cost course covered crop cultivation deposit depth discharge diseases distance ditch drainage dyke earth effect evaporation fall farm farmer feet deep fever field fifth column filled flow foot four feet Gisborne grade ground Hackensack River heat heavy rain houses improvement inches joints kiln labor laid land lateral drains laying length less lower main drain malarious manure marsh matters moisture muddy water nearly necessary obstruction operation outlet particles pipes placed plants plow porous practice prevent quantity rain-fall removed result roots salt marsh saturated season sewage sewers shown in Fig side silt silt-basin slope soakage spring stakes steepest descent stone subsoil sufficient surface tide tile tile-draining tion typhoid fever undrained upper end vegetable whole width