U.
- Uddevalla, shells of, compared with those near Naples, [108.]
- Underlying, term applied to granite, [8.]
- United States, coal field of, [326.]
- cretaceous formation in, [224.]
- Devonian strata in, [349.]
- Eocene strata in, [206.]
- older Pliocene and Miocene formations in, [171.]
- oolite and lias of, [284.]
- Silurian strata of, [359.]
- Upsala, strata containing Baltic shells near, [124.]
V.
- Val di Noto, composition of, [407.]
- igneous rocks of, [389.]
- inland cliffs in, [76.]
- Valleys, origin of, [70.]
- transverse of Weald, [244.]
- Valorsine granite, [445.]
- Veins, mineral. See [Mineral Veins], [488.]
- Veinstones in parallel layers, [493.]
- Velay, volcanos of, [428.]
- Venetz, M., on Alpine glaciers, [140.]
- Verneuil, M. de, on Devonian Flora, [350.]
- on horizontal strata in Russia, [124.]
- on the old red sandstone in Russia, [348.]
- on Pentamerus Knightii, [353.]
- on Permian flora, [305.]
- Vesuvius, eruption of, [405.]
- Vicenza, basaltic columns near, [386.]
- Vidal, Capt., survey by, [393.]
- Virginia, U. S., fossil shells in, [172.]
- Virlet, M., on corrosion of rocks by gases, [477.]
- on geology of Morea, [431.]
- on inland cliffs, [73.]
- Volcanic mountains, form of, [5.] [390.]
- dikes, [378.]
- Volcanic rocks, age of, [397.]
- described, [5.] [385.]
- analysis of minerals in, [377.]
- Cambrian, [435.]
- composition and nomenclature, [368.]
- of Hungary, [421.]
- post-pliocene period, [401.]
- test of age of, [400.]
- Silurian, [434.]
- Volcanic tuff, [374.]
- Volcanos of Auvergne, [422.]
- extinct, [408.] [420.] [422.]
- newer, of Eifel, [418.]
- in Spain, age of, [414.]
- round Olot in Catalonia, [410.]
- Von Buch, Baron, cited, [373.] [456.] [457.]
- on boulders of Jura, [143.]
- on Canary Islands, [392.]
- on Cystideæ, [358.]
- on land rising, [45.]
- Von Dechen, M., on granite veins in Cornwall, [445.]
- Oeynhausen, M., cited, [415.]
W.
- Waller quoted, [93.]
- Warren, Dr. J. C., on skeleton of Mastodon giganteus, [138.]
- Waterhouse, Mr., cited, [188.] [269.]
- on triassic mammifer, Postscript, [xiv.]
- Watt, Mr. G., experiments on fused rocks, [406.] [475.]
- Weald clay, [227.]
- Weald valley, denuded at what period, [254.]
- Wealden, term explained, [225.] [226.]
- the fracture and upheaval of, [251.]
- extent of formation, [236.]
- period, changes during, [235.]
- Wealden, plants and animals of, [229.] [236.]
- Webster, Mr. T., cited, [105.] [231.] [233.]
- Wellington Valley, caves in, [156.]
- Wener Lake, horizontal Silurian strata of, [45.]
- Wenlock formation, [354.]
- Werner on classification of rocks, [90.]
- on mineral veins, [488.]
- on volcanic rocks, [369.]
- Westerwald, igneous rocks of, [417.]
- Westwood, Mr., on beetles in lias, [282.]
- Whin-Sill, intrusion of trap between strata, [384.]
- White chalk, [211.]
- White mountains, granite vein in, [450.]
- Wigham, Mr., on fossils near Norwich, [149.]
- Wolverhampton, fossil forest near, [319.]
- Wood, Mr. Searles, on fossils of crag, [162.]
- on fossils of Isle of Wight, [198.]
- on number of shells in crag, [149.]
- on cetacea of crag, [166.]
- cited, [170.] [177.]
- Woodward, Mr., on mammoth bones, Norfolk, [147.]
- Wrekin, trap of, [70.]
- Wyman, Dr., cited, [208.]
Z.
- Zamia, at Lyme Regis, [282.]
- Zamia spiralis, figure of, [233.]
- Zechstein, [306.]
- Zeuglodon cetoides, [207.] and Postscript, [xxi.]
London:
Spottiswoodes and Shaw,
New-street-Square.