﻿78 



PICTORIAL MISCELLANY. 



needle being allowed to roll over the others. He grasps them so 

 that the ends of the wires (one end of each) projects a small distance 

 beyond the edge of the hand and fingers ; and these ends he applies 

 to the grindstone in the proper position for grinding them down to a 

 point. 



It will easily be seen, that if the wires were held fixedly, the ends 

 would merely be bevelled off, in the manner of a graver, and would not 

 give a symmetrical point ; but by causing each wire to rotate while 

 actually in contact with the grindstone, the pointer works equally on 

 all sides of the wire, and brings the point in the axis of the wire. At 

 intervals of every few seconds, he adjusts the needles to a proper 



