Sailing, solution of a case in, xlvi, 79.

Sal-ammoniac, produced from the combustion of a coal bed, vi, 395.

Salamander, see under [Zoology.]

Salicine, xix, 204, 370; xx, 384.

—, mode of obtaining, xxi, 155.

—, properties of, xlix, 392.

Saliferous formation of the Ohio valley, S. P. Hildreth, xxiv, 46; xxix, 26.

— — in New York, xxxix, 103.

— — in Virginia, xli, 214.

Salina, salt works and springs of, xv, 6; xvi, 187; xix, 141; xxxvi, 2; xxxix, 103.