The book Construction of Maps in Relief. Illustrated was written by author Harden, John Henry, 1836- Here you can read free online of Construction of Maps in Relief. Illustrated book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Construction of Maps in Relief. Illustrated a good or bad book?
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For this pur- pose the following formula is recommended : Beeswax, 16 parts. Venice turpentine 4 " Corn atarch, 8 " Venetian red, 1 " Sweet oil, 1 " Melt the wax, add the Venice turpentine, and sift in the corn starch, stirring the mixture thoroughly, after which the Venetian red or other coloring matter may be added, together with the sweet oil. This preparation, poured into flat dishes, and allowed to cool, is used to fill up the angles or steps. The skill of the topographer now comes into pl...ay in forming the finer details of the topography from the map, between the successive steps formed by the boards, it being assumed that the original is in contours 10 feet apart ; and it is in this part of the work that the mere mechanic fails. The tools employed are of various rounded forms and sizes, to suit the intricate shapes of the finished model. They can be made of hard wood or bone. The wax should be of a consistency to work easily, which can be obtained by regulating the quantity of sweet oil in the above formula.
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