Radford's cyclopedia of construction; carpentry, building and architecture. Based on the practical experience of a large staff of experts in actual constrcution work (1909)
Johnson, Alfred Sidney, 1860-, Radford, William A., 1865- · Chicago Radford Architectural Co · leaf 121
ividers to measure exactly the lengthof a curve; and in the second place, because it islikewise impossible to apply exactly with thedividers any given distance along a curve. Itshould be said, however, that by taking pointssufficiently close together a very good approx-imation indeed can be…
Architecture · Building
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.