Bole.

Bollaert, Mr., on mines of Iquique.

Bones, silicified. —fossil, fresh condition of.

Bottom of sea off Patagonia.

Bougainville, on elevation of the Falkland islands.

Boulder formation of S. Cruz. —of Falkland islands. —anterior to certain extinct quadrupeds. —of Tierra del Fuego.

Boulders in the Cordillera. —transported by earthquake-waves. —in fine-grained tertiary deposits.

Brande, Mr., on a mineral spring.

Bravais, M., on elevation of Scandinavia.

Brazil, elevation of. —crystalline rocks of.