_Trinucleus; concentricus_.
_Trionycidoe_.
_Triton_.
_Trochocyathus_.
_Trochonema_.
_Trogontherium; Cuvieri_.
Trumpet-shells.
Tulip-tree.
_Turbinolia sulcata_.
_Turbinolidoe_.
_Turrilites; catenulatus_.
_Turritella_.
Turtles.
_Typhis tubifer_.

_Ullmania selaginoides_.
Unconformability of strata.
Under-clay of coal.
_Ungulata_, of the Eocene; of the Miocene; of the
Pliocene; of the Post-Pliocene.
Uniformity, doctrine of.
_Unio_.
Univalves (_see_ Gasteropoda).
Upper Cambrian; Chalk; Cretaceous; Devonian; Eocene; Greensand;
Helderberg; Laurentian; Llandovery; Ludlow rock; Miocene;
Oolites; Silurian period; rocks of, in Britain; in North
America; life of.
_Ursus arctos; Arvernensis; ferox; speloea_.
_Ursus_.

Valley-gravels, high-level and low-level.
_Vanessa Pluto_.
_Varanidoe_.
Vegetation (_see_ Plants).
_Ventriculites; simplex_.
Venus's Flower-basket.
_Vermilia_.
_Vespertilio Parisiensis_.
Vicksburg Beds.
Vines.
Vitreous Sponges.
_Voltzia; heterophylla_.
_Voluta; elongata_.
Volutes.

_Walchia; piniformis_.
Walrus.
Wealden Beds.
_Wellingtonia_.
Wenlock Beds; Limestone; Shale.
Wentle-traps.
Werfen Beds.
Whalebone Whales.
Whales.
Whelks.
White Chalk; structure of; origin of.
White Crag.
White River Beds.
Wild Boar.
_Williamsonia_.
Winged Lizards (_see_ Pterosauria).
Winged Snails (_see_ Pteropods).
Wing-shells.
Wolf.
Wolverine.
Wombats.
Woolhope Limestone.
Woolly Rhinoceros.
Woolwich and Reading Beds.
Worm-burrows.

_Xanthidia_.
_Xenoneura antiquorum_.
_Xiphodon_.
_Xylobius; Sigillarioe_.

_Zamia spiralis_.
_Zamites_.
_Zaphrentis; cornicula; Stokesi; vermicularis_.
_Zeacrinus_.
Zechstein.
_Zeuglodon; cetoides_.

End of the Project Gutenberg EBook of The Ancient Life History of the Earth
by Henry Alleyne Nicholson

*** END OF THIS PROJECT GUTENBERG EBOOK HISTORY OF THE EARTH ***

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