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Study And Teaching Meetkunde String Figures
String Figures and Other Monographs contains four mathematical papers: String Figures by W. W. Rouse Ball, Methods and Theories for the Solution of Problems of Geometrical Construction by J. Petersen, Non-Euclidean Plan Geometry and Trigonometry by H. S. Carslaw, and, A History of the Logarithmic Slide Rule by F. Cajori.