e fine silver sand, and let it dry for a short time, then author was of opinion that a well laid surface of compressed brush off the superfluous sand, and place a damp sheet of asphalt, 3 inches to Sfj inches thick, on a foundation of evenly gummed paper carefully over it, and place between I'ig.… … irresponsible paving contractors were many, and necessitated constant vigilance. Inferior cement was put into casks Fig. 9.—Plant Standard, empty. Fig. 13.--Vase. bearing established brands, and the concrete made with such cement was put down in thinner layers than was paid for. Portland cement…
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