Wilmington expositor. (Wilmington, Del.) 1831-18??, 1831-12-16
fnEoalaA 81 rar az rM.

/ e.
/ Geology calculated to excite the fancy OF tfk
student, and hence the ancient specu aliens on
the origin OF the Earth &c.-- Reformation effecl
ted by Werner--Geognosy- Burnet's Sacred
Theory surprising crust deposited on the priA
meval waters, the falling in of which gave rise
to the Deluge, and variations of the seasons
4 Theory of Leibntz, that the Earth was once a
blazing star---1h Theory of Woodward, that
rocks were deposited according to their specif-
Tic gravity-Theory OF HALEY, which ascribed
the Deluge to a Comet Theory of Winston,
likewise employing aComet-that of Whitea
hurst, employing steam-t that Of Button, suppo-
| sing the Earth and Planets knocked from the
Sun by Comet and afterwards cooled, and
the waters drying away--Poetical Theory of
Darwin ascribing the origin of the Ear,t to b
Solar Volcano, and the origin of the Moon. TO
I a Volcano in the South Sea--Theories of La
Place, La Marck, Kepler, and Jhmieson.
| Pecuiarities of Werner, and some history
lof him-He supported the Neptunian Theory
and advocated the aqueous origin of Basalt--
Rival Theory of Hutton, called Plutonian or
lIgneous-the latter generally adopted.
i Davy's Theory of metallic bases PENIS
" Mosaic Geology" suPposing the Earth crea-
ted in its present condition.
i Limits which should be prescribed to legif4
Innate Theory on this subject--Eternity OF mat.
ter not concerned with Geologic Conclusions
which may be drawn from actual examination
OF strata--Ordinary formations made beneath
the Ocean-Animals of the lowest orders then
created, and afterwards destroyed by the caus-
es which produced the Transition rocks--cuii-
GUS habits of ancient shell-fsh--a new create
on of Animals and plants formed and subses
jquentiy destroyed in the deposition of secon-
/ Diary strata-Amphibeou animals, reptiles and
lhsh-Eievation Of mountains after the forma+
lfs..s. ..E&l L..
tive quiescence since that period--fsh buried
alive by rapid subsistence of rocks Quad u.
lpeds not formed till after the lower secondary
lrocks-Enormous animals of the Antedilu, ian
of Tertiary strata--State Of
the Globe previous to the existence of man
Creation of man subsequent TO all other ani-
mas-the Deluge and Diluvial caverns con-
tanning bones--partial inundations Origin Of
Basaltic rocks. such as Giants causeway. Fin
lgal's cave, Brandywinc Blue rock, at different
land irregular periods of time--metallic veins
/ Operation of fire in modern tirnes-devasta-
ltion committed by Volcanoes-conclusion.--
l N. B. The next lecture will be on Botany.
I -
d@Dr. HENRY GIBBONS proposes to
lgive, during the ensuing winter, a course Of
popular lectures on Natural Science. embrac ng
a summary view of the principal objects and
I phenomena in nature. In these lectures viii
l be presented an account of the most important
mineral substances employed In the arts and
domestic economy--an outline of the formati-
on of the earth-of the structure of plants, with
the uses ofleaves, flowers and other parts, and
the curious habits and properties of some plants
la general survey of the several departments
of the animal world--Zoophytes or plant anis
limals-Infusory worms, reptiles, fishes. insects
birds and quadrupeds; of the human species
and its varieties, the causes ofthose varieties,
&c. &c.-together with some observations on
atmospheric phenomena, winds, clouds,rain,
tIhail and snow, thunder and lightning, aurora
lborealis, &c.
II The design of these lectures is to diffuse n
taste for the cultivation of science, and TO aft
ford, more especially to young persons. a RAJ
rtional source of entertainment, by selecting for
Examination the most useful. instructive, and
amusing subjects in nature, and thus presents
! ling that kind of knowledge which ought to be
2 lin possession of every one who would pay a
: lproper share Of attention to mental improve.
+ ment. The lectures will be delivered once a
+ week and in order to render them generally az
valuable, the cost of a single ticket will be sn<
gIly 2 dollars, and a family ticket dollars.
Ell -
I'll TTCrr OF AGENTS.