. The Civil engineer and architect's journal, scientific and railway gazette. Architecture; Civil engineering; Science. 230 THE CIVIL ENGINEER AND ARCHITECFS JOURNAL. [JULT, the valve ; (he rib? are to guKle the valve in its movement np and down. Tile eurfaces of the valve are chilled in the act of casting, and ground »ith Fig. 1. Fig. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original London : [William Laxton]

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Keywords: ., boo, bookcentury1800, booksubjectarchitecture, booksubjectscience