The whole then became consolidated by the percolation of calcareous matter; and the cylindrical cavities left by the decaying of the wood, were thus also filled up with a hard pseudo-stalactical stone.
The whole then became consolidated by the percolation of calcareous matter; and the cylindrical cavities left by the decaying of the wood were thus also filled up with a hard pseudo-stalactitical stone.
Of course, with such a pressure as this, there was likely to be percolation under the foundations and a washing-out of the soil.
It had to be considered whether this percolation could best be checked by laying a solid wall across the river, going down to 50 or 60 ft.
In summer, these streams may become intermittent, but springs and subsurface percolationmaintain pool-levels (Minckley and Cross, loc.
The water from below, is constantly pressing slowly up through it, of course preventing any downward percolation of the rain-water.
The proportion which passes off by percolationvaries according to the nature of the soil in the locality where it falls.
What particular crops are most injured by stagnant water in the soil, or by the too tardy percolation of rain-water, may be determined by observation.
The light texture of the soil admits of the easy percolation of water through it, and, except where the subsoil contains considerable sand, the soil moisture is well retained.
The loamy subsoil allows a ready but not too rapid percolation of surplus soil moisture, and never gets soggy or in a cold, sour condition.
By the percolationof water, through a stratum of calcareous sand, by which it becomes impregnated with carbonate of lime.
By the percolation of water through strata containing decomposing Sulphurets; by which it becomes impregnated with Sulphuric salts.
By the percolation of water through decomposing Clay-slate, or any other ferruginous strata; by which it becomes impregnated with Iron, Alumina, and other mineral matter.
The tramping hardens the soil and shuts out any percolation of water into it.
Seepage, percolation and capillary attraction do the rest.
It has been ascribed, and probably with reason, to the percolation through the rocks of rain-water charged with a little acid from the decomposing vegetation.
De Belloy and Count Rumford De Belloy's pot was probably made of iron or tin, afterward of porcelain; and it has served as a model for all the percolation devices that followed it for the next hundred years.
Percolation devices are subdivided into the simple drip pots and the continuous percolation machines, as represented by numerous complicated and high-priced contrivances on the market.
Percolation is thus applied when the infusion is removed from the grounds immediately by dripping through fine perforations in the china or metal of which the device is constructed.
True percolation is the simple process known by the trade as filtration; but in this classification, the term indicates the style of extraction exemplified by the pumping percolator.
Gradually, however, true coffee lovers are realizing that the best results are to be obtained through simple percolation or simple filtration.
United States patent on the Kellum Thermo Automatic coffee urn, employing a coffee extractor in which the ground coffee is continually agitated before percolation by a vacuum process.
He refers, though not by name, to De Belloy's percolation method and says, "Its usefulness is now universally acknowledged.
Percolation and filtration are practically synonymous, although a shade of distinction in their meaning has arisen so that often the latter is considered as a step logically succeeding the former.
In the strictest sense of the term, an infusion is also produced by percolation and filtration, when the water is not boiled in contact with the coffee.
Percolation means dripping through fine apertures in china or metal as in De Belloy's French drip pot.
LOSS OF SOIL WATER By surface wash By percolation and leaching By evaporation By transpiration How to check these losses 53 VII.
Percolation and ventilation of close compact soils can be improved by mixing lime and organic matter with them.
Some fields are underlaid by a close, compact subsoil which so checks percolation that the surface soil is too wet for tillage operations the greater part of the year.
It is clearly a torrential accumulation, and is supposed to have been formed while the Chalk was frozen, thus preventingpercolation of water and causing the surface water to run off as strong streams.
This interspace caused by the melting of ice becomes filled with water and forms a lake, the drainage of which usually takes place by percolation through the porous parts of the moraine, and not by a stream overflowing that barrier.
There is, moreover, another cause of loss, namely, in the percolation of the finer particles of earth into the fissures in the chalk and into the chalk itself.
From the facts now given we may conclude that castings ejected on our Chalk Downs suffer some loss by the percolation of their finer matter into the chalk.
That suchpercolation occurs can hardly be doubted.
In some cases, these tracts compose basins apparently scarcely at all exposed to any local influence in the way of percolation or infiltration of water toward or from neighboring valleys.
A far greater quantity of water finds an exit by the passage than is returned by the same channel; and I can only explain this by assuming that there is an extensive percolation of water from Natewa Bay into the lake.
Amendment to clay soil Percolation rate in inches per minute Without worms With worms None 0.
They increase percolation of water into fine-textured soils by making a complex system of interconnected channels or tunnels throughout the topsoil.
The sod alone increased percolation but where the sod or mulch fed a worm population, infiltration of water was far better.
Macerate in a closed percolator for 4 days, and then let the percolation commence, and finish it by adding diluted alcohol (equal volumes of alcohol at .
The sliced and dried nuts are to be ground in a coffee-mill, and either exhausted by percolation with rectified spirit or by boiling the powder in repeated portions of the menstruum.
From an infusion prepared bypercolation with cold water.
If the percolation and evaporation have been properly performed the fluid extract will not be required to be filtered.
From the seeds (ground in a coffee-mill), bypercolation with proof spirit.
Macerate in a closed percolator for 4 days, and then let the percolation commence, and finish it by adding more menstruum until 24 oz.
From the dried root of bistort or snake-weed (Polygonum Bistorta), by percolation with temperate distilled water.
In some cases maceration in cold water is resorted to; in others percolation with that fluid in a 'displacement apparatus.
From the dried stalks, bypercolation with temperate water.
The filtering medium may be any substance of a sufficiently spongy or porous nature to allow of the free percolation of the liquid, and whose pores are, at the same time, sufficiently small to render it limpid or transparent.
The coffee is made by percolation in the inner vessel, and being kept at the point of ebullition by the surrounding boiling water, yields a beverage of excellent flavour and aroma.
In all cases, therefore, in which it is not otherwise directed it is absolutely necessary to agitate the several portions of the liquid obtained by percolation together, in order to ensure a product of uniform strength or activity.
The method of percolation is now preferred by all who have made sufficient trial of it to apply it correctly.
When the material is too loosely packed, the menstruum passes through quickly, but without exerting its proper solvent action; when too great pressure is employed, percolation either progresses very slowly or not at all.
An iron tube, 8 inches in diameter, was then driven into the opening, to dam out the land-springs and the percolation from the river.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "percolation" in a variety of sentences. We hope that you will now be able to make sentences using this word.
