Bailly, M., on the mountains of Mauritius.
Bald Head.
Banks’ Cove.
Barn, The, St. Helena.
Basalt, specific gravity of.
Basaltic coast-mountains at Mauritius. -at St. Helena. -at St. Jago.
Beaumont, M. Elie de, on circular subsidences in lava. -on dikes indicating elevation. -on inclination of lava-streams. -on laminated dikes.
Bermuda, calcareous rocks of.
Beudant, M., on bombs. -on jasper. -on laminated trachyte. -on obsidian of Hungary. -on silex in trachyte.
Bole.