Pyromorphite, or phosphate of lead, C. Kersten, xxii, 307.
Pyrope at Brimfield, Mass., vi, 222.
Pyrophorus, explosion of, x, 366.
—, new, from tartrate of lead, ix, 207.
—, remarks on, Gay Lussac, xvii, 176.
—, new, R. Hare, xix, 173.
Pyrophyllite, xviii, 392.
Pyrophysalite, ix, 21.
Pyrotechny, history of, vii, 137.
—, J. Cutbush on, ix, 173.