. The Practical brick and tile book. Tig. 4o. Skew Arch at Brondesbury. The remarkableness of this arch or skew is notalone in its construction, but in the angle that itmakes with the roadway that it spans, the angle ARCHES IN GENERAL. 53 being so acute as to cause tlie abutment line orskew-back of one side to fall without the abut-ment line of the other side. This is shown bythe line a b at right angles to c c, d d, Fig. Fig. 47. Let us imagine that across a given road wehave to construct a bridge whose angle of skew 54 BRICKWORK. shall be equal to that on the accompanying

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Keywords: ., bookcentury1800, bookdecade1880, booksubjectbr, booksubjectbricks