37.

[208] Quart. Journ. Geol. Soc. 1852, p. 62.

[209] Proceedings Roy. Astronom. Soc. No. iii. Jan. 1840.

[210] See a Memoir on the Temperature of the Terrestrial Globe,
and the Planetary Spaces, Ann. de Chimie et Phys. tom. xxvii.
p. 136. Oct. 1824.

[211] Sir H. Davy, Consolations in Travel: Dialogue III. "The
Unknown."

[212] Quart. Journ. Geol. Soc. 1852.

[213] Buckland's Bridgewater Treatise, p. 409.

[214] Owen's Report on "British Fossil Reptiles, to Brit. Soc."
1841, p. 200.

[215] Quart. Journ. Geol. Soc. No. 6, p. 96.

[216] See Hitchcock's Report on Geol. of Massachusetts, and
Lyell's Travels in North America, chap. 12.

[217] See Manual of Geol. by the Author, index _Microlestes_.

[218] This figure (No. 8) is from a drawing by Professor C.
Prevost, published Ann. des Sci. Nat. Avril, 1825. The fossil
is a lower jaw, adhering by its inner side to the slab of
oolite, in which it is sunk. The form of the condyle, or
posterior process of the jaw, is convex, agreeing with the
mammiferous type, and is distinctly seen, an impression of it
being left on the stone, although in this specimen the bone is
wanting. The anterior part of the jaw has been partially broken
away, so that the double fangs of the molar teeth are seen
fixed in their sockets, the form of the fangs being
characteristic of the mammalia. Ten molars are preserved, and
the place of an eleventh is believed to be apparent. The enamel
of some of the teeth is well preserved.

[219] A colored figure of this small and elegant quadruped is
given in the Trans. Zool. Soc. vol. ii. pl. 28. It is
insectivorous, and was taken in a hollow tree, in a country
abounding in ant-hills, ninety miles to the southeast of the
mouth of Swan River in Australia.--It is the first living
marsupial species known to have nine molar teeth in the lower
jaw, and some of the teeth are widely separated from others,
one of the peculiarities in the thylacotherium of Stonesfield,
which at first induced M. Blainville to refer that creature to
the class of reptiles.

[220] This figure (No. 10) was taken from the original,
formerly in Mr. Broderip's collection, and now in the British
Museum. It consists of the right half of