Abstract
PERHAPS the most notable feature of this work is its logical development of the subject. Beginning with the point in space we are shown its plan, front elevation, and side elevation, when situated in the various positions relatively to the three planes of projection. Then follows an equally exhaustive treatment of the line and plane. A very complete system of notation, specially suitable for oral instruction as well as for private reading, is carefully defined and strictly adhered to throughout. Also, in the authors' scheme is a unique system of triple columns. In the first column the problem is stated in general terms along with the principles and previous problems involved. In the other two parallel columns we have an illustrative particular case, accompanied by a figure, or by a series of figures exhibiting the successive steps in the solution. The authors give special prominence to three fundamental constructions on which most of the subsequent work is based.
Descriptive Geometry.
Part i., Lines and Planes. By Prof. John C. Tracey. Part ii., Solids. By Prof. H. B. North and Prof. J. C. Tracey. Pp. x + 126. (New York: John Wiley and Sons, Inc.; London: Chapman and Hall, Ltd., 1914.) Price 8s. 6d. net.
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Descriptive Geometry . Nature 93, 348 (1914). https://doi.org/10.1038/093348c0
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DOI: https://doi.org/10.1038/093348c0