Draining for Profit: And Draining for HealthOrange Judd Company, 1890 - 252 páginas |
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Resultados 1-5 de 19
Página 32
... the condition which it is desirable to obtain , by either natural or artificial drainage ; the third case is the only one which makes drainage necessary . It is a fixed rule that water 32 DRAINING FOR PROFIT AND HEALTH .
... the condition which it is desirable to obtain , by either natural or artificial drainage ; the third case is the only one which makes drainage necessary . It is a fixed rule that water 32 DRAINING FOR PROFIT AND HEALTH .
Página 33
... fixed rule that water , descend- ing in the soil , will find the lowest outlet to which there exists a channel through which it can flow , and that if , after heavy rains , it rise too near the surface of the ground , the proper remedy ...
... fixed rule that water , descend- ing in the soil , will find the lowest outlet to which there exists a channel through which it can flow , and that if , after heavy rains , it rise too near the surface of the ground , the proper remedy ...
Página 49
... fixed on a tripod , and so adjusted that it will turn to any point of the compass without dis- turbing the position of the bubble , will , ( as will its " line of sight , " ) revolve in a perfectly horizontal plane . It is so placed as ...
... fixed on a tripod , and so adjusted that it will turn to any point of the compass without dis- turbing the position of the bubble , will , ( as will its " line of sight , " ) revolve in a perfectly horizontal plane . It is so placed as ...
Página 63
... fixed rules , and are so much a matter of traditional knowledge , with all farmers , that instruction concerning them is not needed . The kind of draining which is now under consideration , has for its ob- ject the complete removal of ...
... fixed rules , and are so much a matter of traditional knowledge , with all farmers , that instruction concerning them is not needed . The kind of draining which is now under consideration , has for its ob- ject the complete removal of ...
Página 66
... fixed four feet as about the proper depth , and the arguments against anything less than this , as well as some reasons for sup posing that to be sufficient , are so clearly stated by Mr. Gisborne that it has been deemed best to quote ...
... fixed four feet as about the proper depth , and the arguments against anything less than this , as well as some reasons for sup posing that to be sufficient , are so clearly stated by Mr. Gisborne that it has been deemed best to quote ...
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