Draining for Profit: And Draining for HealthOrange Judd Company, 1890 - 252 páginas |
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Página 29
... steepest descent . Showing " us his drains this spring , he said : " They do better year " by year ; the water gets a habit of coming to them ' —a very " correct statement of fact , though not a very philosophical " explanation . " 66 ...
... steepest descent . Showing " us his drains this spring , he said : " They do better year " by year ; the water gets a habit of coming to them ' —a very " correct statement of fact , though not a very philosophical " explanation . " 66 ...
Página 75
... steepest descent . For a long time after the general adoption of thorough- draining , there was much discussion of this subject , and much variation in practice . The influence of the old rules for making surface or catch - water ...
... steepest descent . For a long time after the general adoption of thorough- draining , there was much discussion of this subject , and much variation in practice . The influence of the old rules for making surface or catch - water ...
Página 76
... steepest descent , and at the same time to have them all parallel , and at uniform distances . In all such cases a compromise must be made between the two requirements . The more nearly the par- allel arrangement can be preserved , the ...
... steepest descent , and at the same time to have them all parallel , and at uniform distances . In all such cases a compromise must be made between the two requirements . The more nearly the par- allel arrangement can be preserved , the ...
Página 97
... steepest descent of the land . 2d . They should be placed at intervals proportionate to their depth ; —if 4 feet deep , at 40 feet intervals ; if 3 feet deep , at 20 feet intervals . 14 m 12 14 14 C.14 4.00 3.89 C.15 3.68 5 HOW TO LAY ...
... steepest descent of the land . 2d . They should be placed at intervals proportionate to their depth ; —if 4 feet deep , at 40 feet intervals ; if 3 feet deep , at 20 feet intervals . 14 m 12 14 14 C.14 4.00 3.89 C.15 3.68 5 HOW TO LAY ...
Página 99
... steepest descent cannot be par- allel , and , consequently , the intervals between them can- not be always the same ; those which are farther apart at one end than at the other cannot be always of a depth exactly proportionate to their ...
... steepest descent cannot be par- allel , and , consequently , the intervals between them can- not be always the same ; those which are farther apart at one end than at the other cannot be always of a depth exactly proportionate to their ...
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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