— of roses, on the preparation and analysis of, R. Blanchet, xxviii, 383.
— of turpentine, see [Turpentine.]
— of sweet almonds, impurities in, xix, 76.
— of the tutui or candlenut tree of the Sandwich Islands, xxxiv, 209.
— of wine, destructive distillation of, xxxvi, 76.
— from white fish, xxxv, 391.
—, essential, adulteration of, with alcohol, xix, 77; xlvii, 197.
—, —, action of, with sulphurous acid, R. Hare, xxxi, 281.
—, watchmaker's, best, ix, 202.
Oil-casks, rendered impermeable by glauber salt, xxx, 173.