The boy's own book of indoor games and recreations : a popular encyclopædia for boys (1890)
Stables, Gordon, 1840-1910, Hutchison, George Andrew, 1841-1913 · Philadelphia : J.B. Lippincott · leaf 333
disc. The result is that all difficulty in holdiftg \htpebble is removed. The pressure is constant, and the cut is made perfectly true.The right hand is now free to manipulate the feather for lubricating the disc, andyou can work without getting a drop of oil upon your fingers. You turn the… … Fig. 8. the disc in a minute when cuttinga pebble ! Keep all points offriction well oiled, and everythingwill go merrily as a marriage bell.H shows the plate for catchingthe drops of paraffin and detritusfrom the stone ; j shows the saucerof paraffin. The length of thearm (c d) is ten inches.…
Games · Amusements
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