— —, in France, impurities of, xix, 178.
— —, mines in Cheshire, England, xxiii, 219.
— in South America, on the plains of Tarapaca, J. H. Blake, xliv, 2.
— —, New Grenada, works of Zipaquera, J. H. Gibbon, xxxii, 89.
— in North America, U. States, springs and deposits, G. W. Carpenter, xv, 1.
— —, New York, rocks and springs of, xv, 5, 6, 214; xxxvi, 2; xxxix, 103.
— —, —, works of Onondaga lake, xlii, 228.
— —, —, works of Salina and Syracuse, xv, 6; xix, 141.
— —, —, manufacture of, xxxvi, 2.
— —, Pennsylvania, valley of the Kiskiminitas and Conemaugh, S. P. Hildreth, xxix, 71.