It must be mentioned that when the reservoir was filling, the water percolated through the masonry, giving the face wall the appearance of a huge filter, which at the time was attributed to the porous nature of the sandstone used in construction, but which more probably was due to the washing of the green mortar out of the joints.
It is very porous, and absorbs a good deal of the pickle in the three months in which it lies in it, and then has a smell so awful that it is difficult to remain in a house in which it is being eaten. It is the worst smell I know of except that of a skunk!"
Where, as in the case of upturned porous beds, the crevice water penetrates far below the earth's surface or the open-air streams which drain the water away, the fluid acquires a considerable increase of temperature, on the average about one degree Fahrenheit for each eighty feet of descent.
The cheese maker has been at an entire loss to understand these irregularities, nor has he possessed any means of removing them. The abnormal ripening that occurs takes on various types. Sometimes the cheese will become extraordinarily porous, filled with large holes which cause the cheese to swell out of proper shape and become worthless.
This, if made with a porous or spongy internal coating, would fire the charge with certainty, at a lower temperature than iron, and it could be made so thin and small in diameter, without risk of deterioration or loss of strength, that an exceedingly small flame could be used to heat it up. As it would be fully heated in a very few seconds, the delay in starting would be obviated.
She would groan and squeal, Chet knew, when the fans lifted her from the hold-down clutch; and she couldn't fly at over twenty thousand without leaking her internal pressure through a thousand cracks that made her porous as an old balloon but to Chet's eyes the old relic of the years was a thing of sheer beauty and grace.
By stretching to the full extent of his arm, he managed to plunge the stick into the water. Tasting the drops, he found that they were quite sweet. The sand and porous rock provided the best of filter-beds. He rose, wall pleased, and noted that on the opposite side the appearance of the shrubs and tufts of long grass indicated the existence of a grown-over path towards the cliff.
He explored the waters and the woods and brought Dick wild grapes with much character and cocoa plums with little; sea-grapes with juice that had the taste of claret and the color of blood; figs, of which Dick said: "De breed am small, but de flavor am delicious"; wild sapadillos that were sweet as honey, but chewed up into a solid ball of soft india rubber; and mastic berries that were delicious to the taste, but stuck like a porous plaster to the roof of the mouth.
The immaterialist proceeds to say, that what we call matter has been strewn to be so exceedingly porous, that, for any thing we know, all the solid particles in the universe might be contained in a nutshell, that there is no such thing in the external world as actual contact, and that no two particles of matter were ever so near to each other, but that they might be brought nearer, if a sufficient force could be applied for that purpose.
One may follow a stream of considerable volume down the southern slope of the Atlas Mountains. The volume of water grows less and less until at last it apparently disappears. Not all is lost by evaporation, however; possibly the greater part sinks into the porous rock waste. And the rock waste? perhaps it may be twenty, fifty, or one hundred and fifty feet deep.