Draining for Profit: And Draining for HealthOrange Judd Company, 1890 - 252 páginas |
Dentro del libro
Resultados 1-5 de 16
Página 22
... floor . 3. Its floor is laid on a well regulated line of descent , so that its current may maintain a flow of uniform , or , at least , always sufficient rapidity , throughout its entire length . Land which requires draining , is that ...
... floor . 3. Its floor is laid on a well regulated line of descent , so that its current may maintain a flow of uniform , or , at least , always sufficient rapidity , throughout its entire length . Land which requires draining , is that ...
Página 23
... floor of the drains , and its water - table will be at a distance of some feet from the surface , leaving the spaces between the particles of all of the soil above it filled with air instead of water . The water below the drains stands ...
... floor of the drains , and its water - table will be at a distance of some feet from the surface , leaving the spaces between the particles of all of the soil above it filled with air instead of water . The water below the drains stands ...
Página 32
... floor of a drain , it will raise the general level of the water , and force it out through the drain ; if it meet water which has no outlet , it will raise its level until the soil is filled , or until it accumulates sufficient pressure ...
... floor of a drain , it will raise the general level of the water , and force it out through the drain ; if it meet water which has no outlet , it will raise its level until the soil is filled , or until it accumulates sufficient pressure ...
Página 33
... floor of a room , its evaporation cools the air of the room . So great is the effect of evaporation , on the temperature of the soil , that Dr. Madden found that the soil of a drained field , in which most of the water was removed from ...
... floor of a room , its evaporation cools the air of the room . So great is the effect of evaporation , on the temperature of the soil , that Dr. Madden found that the soil of a drained field , in which most of the water was removed from ...
Página 64
... floor of the drains , the water enters at the joints and is carried off . That which passes down through the land lying between the drains , bears down upon that which has al- ready accumulated in the soil , and forces it to seek an out ...
... floor of the drains , the water enters at the joints and is carried off . That which passes down through the land lying between the drains , bears down upon that which has al- ready accumulated in the soil , and forces it to seek an out ...
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
acre agricultural allow basin bottom brick bushels carried cause cents clay collars commenced condition connection considerable contour lines cost course covered crop cultivation deposit depth discharge diseases distance ditch drainage dyke earth effect Ensilage 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 retentive roots salt marsh saturated season sewage sewers shown in Fig side silt silt-basin slope soakage soil spring stakes steepest descent stone subsoil sufficient surface tide tile tile-draining tion typhoid fever undrained upper end whole width