—, properties of, xvii, 182.

—, price of, in 1825, ix, 387.

—, experiments on, by J. T. Ducatel, xxv, 90.

—, ammoniacal nitruret of, xxv, 205.

—, iodide of platinum and, W. W. Mather, xxvii, 257.

—, preparation of iodide of, ix, 188.

—, ferridcyanide, deoxidation of, C. F. Schönbein, xlix, 203.

— and naphtha, explosive compound produced from, xxiv, 315.

—, mode of filling tubes with, xxiv, 316.

Potatoe, found wild in South America, iv, 195.