The darning ball (Fig. 157) and the darning hemisphere (Fig. 159) should be finely finished, especially on the large hemispherical ends. The sizes may vary. Those given in

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Fig. 157. Darning Ball.

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Fig. 158. Darning Ball.

the drawings (Figs. 158 and 160) are of the average size. The wood used should be of a close, hard grain. Maple, cherry, apple, etc., are suitable.

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Fig. 159. Darning Hemisphere.

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Fig. 160. Darning Hemisphere.