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One who attributes the phenomena of the drift, in geology, to glaciers.

Bearing globules; in geology, used of rocks, and denoting a variety of concretionary structure, where the concretions are isolated globules and evenly distributed through the texture of the rock.

York. It includes the Marcellus, Hamilton, and Genesee epochs or groups. See the Chart of Geology.

The upper division of the European Triassic. See Chart of Geology.

gnite, often valuable for coal, and is hence also called the lignitic group. See Chart of Geology.

gland and Europe to a series of marine limestones underlying the Oölite. See the Chart of Geology.

n formations of Great Britain; -- so named from Llandeilo in Southern Wales. See Chart of Geology.

A combining form denoting a discourse, treatise, doctrine, theory, science; as, theology, geology, biology, mineralogy.

the Old Red Sandstone; -- so named from the Ludlow, in Western England. See the Chart of Geology.

e formations known as the Oneida conglomerate, and the Medina sandstone. See the Chart of Geology.

e secondary or reptilian age, or the era between the Paleozoic and Cenozoic. See Chart of Geology.

Of or pertaining to micro-geology.

The Miocene period. See Chart of Geology.

A soft Tertiary sandstone; -- applied to a rock occurring in Switzerland. See Chart of Geology.

below the coal measures, and above the old red standstone of Great Britain. See Chart of Geology. -- Mountain linnet (Zoöl.), the twite. -- Mountain magpie. (Zoöl.) (a) The yaffle, or green woodpecker. (b) The European gray shrike. -- Mountain mahogany (Bot.) See under Mahogany. -- Mountain meal (Min.), a light po…

middle one of the three divisions of the Triassic formation in Germany. See Chart, under Geology.

a history or description of nature as a whole, incuding the sciences of botany, zoölogy, geology, mineralogy, paleontology, chemistry, and physics. In recent usage the term is often restricted to the sciences of botany and zoölogy collectively, and sometimes to the science of zoology alone. -- Natural law, that insti…

ess of limestone, which is gradually undermined by the removal of the shale. See Chart of Geology.

various strata of siliceous sandstones and conglomerates. See Sandstone, and the Chart of Geology. -- Old school, a school or party belonging to a former time, or preserving the character, manner, or opinious of a former time; as, a gentleman of the old school; -- used also adjectively; as, Old-School Presbyterians.…

The Oligocene period. See the Chart of Geology.