Lime, muriate of.
Limestone of Cumbre Pass. —of Coquimbo. —of Copiapo.
Lund and Clausen on remains of caves in Brazil.
Lund, M., on granites of Brazil.
Lyell, M., on upraised shells retaining their colours. —on terraces at Coquimbo. —on elevation near Lima. —on fossil horse’s tooth. —on the boulder-formation being anterior to the extinction of North American mammifers. —on quadrupeds washed down by floods. —on age of American fossil mammifers. —on changes of climate. —on denudation. —on foliation.
MacCulloch, Dr., on concretions. —on beds of marble.
Maclaren, Mr., letter to, on coral-formations.
Macrauchenia Patachonica.
Madeira, subsidence of.
Magellan, Strait, elevation near, of.