Some wear to dust jacket. Internally clean and bright. Inscription to first page in blue ink.
This book opens up a new field of mathematics at elementary level, on in which the element of aesthetic pleasure, both in the shapes of the curves and in their mathematical relationships, is dominant. It has nothing to do with any ex-amination.
This book describes methods of drawing plane curves, beginning with the conic sections (parabola, ellipse, and hyperbpla), and going on to cycloidal curves, spirals, glissettes, pedal curves, strophoids and so on. In general, 'evelope methods' are used. There are a photograph frontispiece, twenty-fivr full-page plates, and over ninety smaller diagrams in the text.