| Rock is vitrifiable as free-stone, and of the same nature, only it is harder and the parts more connected. |
| In this variety of painting, vitrifiable colours are laid on thin plates of metals, and fused into it. |
| The use of glass scraps in vitrifiable compounds lowers the temperature required for fusion and consequently a lower quantity of fuel for the fusion is required. |
| The materials of the second class are all vitrifiable excepting those which the fire entirely consumes by inflammation. |
| In this manner a greater uniformity in heating of the vitrifiable composition is achieved. |
| For example, we see that in the pits at Amsterdam and Marly la Ville, vitrifiable sand was below every other stratum. |
