Marekanite.
Mauritius, crater of elevation of.
Mica, in rounded nodules. -origin in metamorphic slate. -radiating form of.
Miller, Prof., on ejected Labrador feldspar. -on quartz crystals in obsidian beds.
Mitchell, Sir T., on bombs. -on the Australian valleys.
Mud streams at the Galapagos archipelago.
Narborough island.
Nelson, Lieut., on the Bermuda islands.
New Caledonia.
New Red sandstone, cross cleavage of.