Compactibility

These plugs fell out perhaps for three reasons—proneness of the teeth to decay, want of sufficient hold for the plug, and compactibility of the gold; but the latter was the greatest cause, at least we think so from the fact that where there was still a portion of the gold remaining, it was soft, water-soaked; hence capillary attraction must be overcome to a great extent or the gold will finally be displaced.

Their compactibility, neat yet attractive appearance, always gain admirers, and being made of small power they are much in demand.

The data indicate that very "stiff" sands with compactibilities over 55 to 60% cannot be compacted properly in pockets or restricted mold areas unless 1) those areas are peened or 2) compacting energy somehow is applied directly to the individua area or areas.