The Preservation of Timber By the Use of Antiseptics
The Preservation of Timber By the Use of Antiseptics
Samuel Bagster Boulton
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De Laune, the au- thor would remark that his paper had a much wider object in view than the mere question of carbolic acid; the presence or absence of that body would not explain Mr. De Laune's difficulty. No honest creosote made from coal-tar, whether " London" or "country" oil, whether with much or little tar acid, contained any ingredient which could injure timber ; the only question was, which of those in- 201 gradients was most efficacious and most durable. The question as to which was the... easiest to put into the timber was of much less importance. Some small pieces of hurdles, &c. , had been shown during the discussion, and alluded to by Dr. Voelcker, Mr. Carruthers, and Mr. De Xiaune ; Mr. E. A. Cowper had detected the reason why one had succeeded and the other failed. The first had had plen- ty of creosote put into it ; the others but very little. Mr. De Laune had made a detailed statement to the author, which was briefly as followed: That he had been in the habit of preparing different kinds of timber of various densities, and frequently in a wet or unseasoned state by boiling the wood in creosote in open tanks and without a thermometer; and that he did not keep the timber in the tanks more than twelve hours, as a long- er operation rendered it brittle a very significant fact.
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