the concretewere then removed as speedily as possible from each column.In no case had the strips of lead melted, nor did they showthe least sign of injury. The hand could, immediately afterthe removal of the concrete, be borne on its inner surface, orupon the iron columns, without discomfort; and… … Fig. 4.-DISTIL1ER-SECTI0NAL VIEW arranged to prevent the absorption of the water in the re-ceivers into the crystalizers, and P are also safety tubes lead-ing the vapors formed by the water in the cistern, F, backinto Q. R are the dropping boards for the sulphate of ammonia, and X, leaden vats…
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