Working now with a pair of tweezers, Mr. Threader moves granules of gold one by one from the pile of snips to one of the pans of his great Scale. On the opposite pan he places a twelve-grain weight from the set that was stored in the Abbey. After a minute the scale-pans begin to move. The Pesour goes into a protracted and tedious work of swapping larger bits for smaller ones, or sometimes snipping a bit in half to make change, as it were.