This is the science book. Sir William Hamilton himself formed somewhat this sort of conclusion, on receiving the first intimation of this shower of stones from the Earl of Bristol. I cannot therefore but allow my own conclusion to carry conviction with it to my own mind; and to send it forth into the world; as a ground, at least, for speculation, and reflection, to the minds of others. That ashes, and sand, and pyritical and sulphureous dust, mixed with metallic particles from volcanoes; fit for the instantaneous crystallization.