Draining for Profit, and Draining for HealthOrange Judd Company, 1867 - 238 páginas |
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Página 5
... tion of drains . - Main drains . - Spring water . - Fall . - Tiles . - Depth and distance apart . - Direction of laterals . - Collars . - Discharge of water from drains . CHAPTER IV . HOW TO MAKE THE DRAINS . Tools . - Marking the lines ...
... tion of drains . - Main drains . - Spring water . - Fall . - Tiles . - Depth and distance apart . - Direction of laterals . - Collars . - Discharge of water from drains . CHAPTER IV . HOW TO MAKE THE DRAINS . Tools . - Marking the lines ...
Página 9
... tion , or healthful for residence , and very much more , des- cribed as " ordinarily dry land , " which draining would greatly improve in both productive value and salubrity . The Surface Indications of the necessity for draining are ...
... tion , or healthful for residence , and very much more , des- cribed as " ordinarily dry land , " which draining would greatly improve in both productive value and salubrity . The Surface Indications of the necessity for draining are ...
Página 17
... soil in a condi- tion to receive it , soon fills this , and often more than fills it , and stands on the surface . After the rain , come wind and sun , to dry off the standing water , -to LAND TO BE DRAINED AND THE REASONS WHY . 17.
... soil in a condi- tion to receive it , soon fills this , and often more than fills it , and stands on the surface . After the rain , come wind and sun , to dry off the standing water , -to LAND TO BE DRAINED AND THE REASONS WHY . 17.
Página 22
... tion by itself , but if the sole object is to make drains , the best material should be used , and this material is not stone . A well laid tile - drain has the following essential charac- teristics : -1 . It has a free outlet for the ...
... tion by itself , but if the sole object is to make drains , the best material should be used , and this material is not stone . A well laid tile - drain has the following essential charac- teristics : -1 . It has a free outlet for the ...
Página 26
... tion , shrinks into hard masses , separated by wide cracks . In short , in wet seasons , on such land , the crops will be greatly lessened , or entirely destroyed , and in dry seasons , cultivation will always be much more laborious ...
... tion , shrinks into hard masses , separated by wide cracks . In short , in wet seasons , on such land , the crops will be greatly lessened , or entirely destroyed , and in dry seasons , cultivation will always be much more laborious ...
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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 amount basin bottom brick bushels carried cause cent Central Park CHAPTER clay Clinometer collars commence 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 four feet Gisborne grade ground Hackensack River heat heavy rain houses improvement inches inclination joints kiln labor laid land laying length less lower main drain malarious manure marsh matters measure moisture muddy water nearly necessary obstruction operation outlet particles pipes placed plants plowing porous practice prevent proper 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 tide tile drain tion typhoid fever under-draining undrained vegetable whole width
Pasajes populares
Página 80 - ... part.* When the Regent's Park was first drained large conduits were in fashion, and they were made circular by placing one horseshoe tile upon another. It would be difficult to invent a weaker conduit. On re-drainage innumerable instances were found in which the upper tile was broken through the crown, and had dropped into the lower. Next came the...
Página 221 - Excess of moisture, even on lands not evidently wet, is a cause of fogs and damps. " 2. Dampness serves as a medium for the conveyance of any decomposing matter that may be evolved, and adds to the injurious effects of such matters in the air; in other words, the excess of moisture may be said to increase or aggravate atmospheric impurities. " 3. The evaporation of the surplus moisture lowers the temperature, produces chills, and creates or aggravates the sudden and injurious changes or fluctuations...
Página 68 - A farmer manures a field of four or five inches of free soil reposing on a retentive clay, and sows it with wheat. It comes up, and between the kernel and the manure it looks well for a time, but anon it sickens. An Irish child looks well for five or six years, but after that time potato-feeding, and filth, and hardship, begin to tell.
Página 79 - ... material, even when the drain is completed, offers an imperfect resistance, but the constant pressure together of the sides, even when it does not produce a fracture of the soil, catches hold of the feet of the tile and breaks it through the crown. Consider the case of a drain formed...
Página 67 - ... against evaporation; and we are inclined to believe that any prejudicial combined action of attraction and evaporation is thereby well guarded against. The facts stated seem to prove that less will not suffice. So much on the score of temperature, but this is not all. Do the roots of esculents wish to penetrate into the earth — at least, to the depth of some feet? We believe that they do.
Página 167 - ... if it does come, then draining will pay for itself speedily. For instance, Mr. Johnson had a lot of thirteen acres on the shore of the lake, where the bank at the foot of the lot was perpendicular to the depth of thirty or forty feet. He supposed from this fact, and because the surface seemed very dry, that he had no need to drain it. But somehow he lost his...
Página 166 - ... clay tiles were buried in the ground. But this increase of crop is not the only profit of drainage ; for Mr. Johnston says that on drained land one half the usual quantity of manure suffices to give maximum crops. It is not difficult to find a reason for this. When the soil is sodden with water, air...
Página 225 - In the system now adopted, it has been sought to remove these evils by the construction of new lines of sewers, laid at right angles to the existing sewers, and a little below their levels, so as to intercept their contents, and convey them to an outfall 14 miles below London Bridge.