—, of Tennessee, iv, 51.
—, of Vermont, iv, 43, 188; v, 272; vii, 59.
—, of Virginia, iii, 243; iv, 277.
—, of Sicily, viii, 205.
—, chlorophane variety in Connecticut, ii, 141; v, 254; vi, 212.
—, new phenomenon of color in, xxxv, 295.
Fluoric acid in mica, ii, 376.
— —, its application to etching glass, vi, 354.f
— — and fluates, xiv, 387.
Fluoride of iodine, H. B. Leeson, xlix, 205.