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DRAWING OVALS AND ELLIPSES
Take note, first of all, of the difference between an ellipse and an oval.
The large plate explains the construction of an ellipse. It shows how to find the points where the three pins are placed that determine the size of the looped string. Be sure and make measurements accurately. Use a string that will not give, cotton thread is good for small ellipses, silk is too elastic. A suggestion to amateur gardeners: make elliptical flower beds this way.
The caution in regard to accuracy also applies to the making of the oval.
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