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The impregnation of the paper with a water-proofing liquid had not been thought of, and the roofs were constructed by laying over the rafters a boarding, upon which the unsaturated paper, the sides of which lapped over the other, was fastened with short tacks. The surface of the paper was next coated with heated pine tar to make it waterproof.
The selected husks were packed and baled, ready for market. The stalks were stripped and topped by a clever machine. The excellent forage thus accumulated, was baled and stored. The pith in the large part of the stalk, was then extracted by another machine. These piths were then treated to a water-proofing process, sent to a shop on the farm, and made up into life preservers.
Matters of tarring and water-proofing were discussed in and out of season, and the very school-children imbibed knowledge concerning lapping, overlapping, and cross-lapping, and first and second quality of cedar shingles.
"You'll have a rare view of it all." Only a single row of heads intervened between them and the operating table. It was of unpainted deal, plain, strong, and scrupulously clean. A sheet of brown water-proofing covered half of it, and beneath stood a large tin tray full of sawdust.
Your caterpillar hasn't the wit to realize that conditions have changed with the years, and that he now lives out his days beneath a roof that does away with the need of water-proofing. It is because the cocoons are thus sealed on the inside that the water does not penetrate them when they are floated. You'll notice that if you ever have a chance to see the silk reeled off.
The conductor consisted of seven wires of pure copper, weighing three hundred pounds to the mile. This copper core was covered with Chatterton's compound, which served as water-proofing. This was surrounded by four layers of gutta-percha, cemented together by the compound, and about this hemp was wound.
Una spent much of her time in copying over and over a hundred times, two hundred times form-letters soliciting advertising, letters too personal in appearance to be multigraphed. She had lists of manufacturers of motor-car accessories, of makers of lubricating oils, of distributors of ball-bearings and speedometers and springs and carburetors and compositions for water-proofing automobile tops.
In the northern country the water-proofing matter is, according to travellers, the juice of the Quolquol, a species of Euphorbium. The flies are always most troublesome where cows have been; kraals of goats and camels are comparatively free from the nuisance.
After your cellar flood has either evaporated or been pumped out and the foundation walls are dry inside and out, repair the cracks through which this water trickled, as well as others that might have contributed to the trouble. Use a rich cement to which has been added the proper amount of water-proofing chemical.
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