Part 24 (2/2)

_Equus caballus_, Lin. (common horse); from the sh.e.l.l marl, Forfars.h.i.+re; second molar, lower jaw.

_a._ grinding surface, two-thirds nat. size.

_b._ side view of same, half nat. size.]

[Ill.u.s.tration: Fig. 135. Tapir.

_Tapirus America.n.u.s_; recent; third molar, upper jaw; nat. size.]

[Ill.u.s.tration: Fig. 136. _a._ _b._ Deer.

Elk (_Cervus alces_, Lin.); recent; molar of upper jaw.

_a._ grinding surface.

_b._ side view; two-thirds of nat. size.]

[Ill.u.s.tration: Fig. 137. _c._ _d._ Ox.

Ox, common, from sh.e.l.l marl, Forfars.h.i.+re; true molar upper jaw; two-thirds nat. size.

_c._ grinding surface.

_d._ side view.]

[Ill.u.s.tration: Fig. 138. Bear.

_a._ canine tooth or tusk of bear (_Ursus spelaeus_); from cave near Liege.

_b._ molar of left side, upper jaw; one third of nat. size.]

[Ill.u.s.tration: Fig. 139. Tiger.

_c._ canine tooth of tiger (_Felis tigris_); recent.

_d._ outside view of posterior molar, lower jaw; one-third of nat. size.]

[Ill.u.s.tration: Fig. 140. _Hyaena spelaea_; second molar, left side, lower jaw; nat. size. Cave of Kirkdale. (See p. 154.)]

[Ill.u.s.tration: Fig. 141. Teeth of a new species of _Arvicola_ (field-mouse); from the Norwich Crag. (See p. 149.)

_a._ grinding surface.

_b._ side view of same.

_c._ nat. size of a and b.]

FOOTNOTES:

[147-A] Morris, Geol. Soc. Proceed., 1849.

[147-B] Woodward's Geology of Norfolk.

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