Читать книгу Neighbourhood: A year's life in and about an English village онлайн

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The best dew-pan makers are the men of Wiltshire, as all flockmasters know. The pond, having been excavated to the right depth and shape, is lined first with puddled clay or chalk, then with a thick layer of dry straw; finally, upon this straw a further substantial coating of clay is laid, and well beaten down. Nothing is needed then but to bring a few cart-loads of water to start the pond, and to set a ring-fence about it to keep off heavy stock. The action of the straw, in its waterproof double-casing, is to intercept the heat-radiation of the earth at that particular point, so that the pond-cavity and its contents remain colder than the surrounding soil.

How the dew-pond came to be invented has often been the subject of wondering speculation. No doubt there have been dew-pond makers for untold centuries back, but at one time, however far distant, a first discovery of the principle underlying the thing must have been made. Probably the dew-pond, in some form or other, had its origin in those remote times when all the high-lying chalk-lands of southern England were overrun by a dense population. But then, as now, the region must have been waterless; and the people, living there for security’s sake, must, nevertheless, have been constrained to provide themselves with this first daily necessity of all life. We read of the manna given in the Wilderness, and the water struck from the Rock. These were miracles worked, as miracles ever are, for children: they were grown men, evidently, in mind and heart, to whom the dew-pond was given. For though the thing, in essence, was set to shine about their feet wherever men trod, so that none could forbear seeing, its adaptation to human need was left to man’s own labour and thoughtful ingenuity. To-day, as in those far-off ages, the dwarf plume-thistle studs the sward of the Downs, each circle of thick, fleshy leaves, matted together and centrally depressed, forming a perfect little dew-pond, that retains its garnered moisture long after all other vegetation has grown dry in the heat of the mounting sun. Even if there were no such thing as a dew-pond on all the Downs to-day, and every flock must perforce be driven miles, perhaps, down into the valley to be watered, it is inconceivable that no one of prime intelligence, wandering the hills alive to the need of the thirsty thousands around him, would mark the natural reservoirs of the thistles, reason out the principles they embodied, and straightway set brain and hand to work on the first dew-pond—using perchance, in earliest experiment, the actual thistle-leaves for the indispensable heat-retarding layer.