The alluvial has received a portion of attention; indeed under this term has been included until of late, the vast tertiary formation situate between the alleganies and the atlantic.

The vast number of beautiful fossils that we are constantly receiving from our secondary and tertiary formations go far towards proving that many of our rocks are precisely of similiar formation with many of those of Europe, and afford new proofs of the value of these remains as geological characters.

Allow me, for one moment, in concluding this sketch of Theories, to draw your attention to the striking similarity of the Records of Sacred History, and the phenomena of Geology. Upon a comparison, I think you will coincide with me in the assertion, that the Mosaic account of the structure of our globe is fully corroborated by the evidence afforded by the Science with which we are now engaged.

The account in Genesis may be summed up in three articles.

1st. That God was the original creator of all things.

2d. That at the foundation of the globe we inhabit, the whole of its materials were in a state of chaos and confusion.

3. That at a period not exceeding 5000 years, (according to both Septuagint and Hebrew Chronicle) the whole earth underwent a mighty catastrophe, in which it was completely inundated by the immediate agency of the Deity, and all its inhabitants destroyed, except the remnant miraculously preserved to continue the species. If to these great outlines of the sacred historian, we add that the materials of the globe were in a fluid state previous to its organization and that its organization was gradual, we embrace all the important points comprised in the Records-and all that the most zealous believer in inspiration is bound to maintain.

Let us now look to the phenomena of Geology, and see the conclusions drawn from their study and examination. These conclusions, condensed from the observations of Cuvier, the most acurate naturalist of the present day, may also be comprised under three heads.

1st. That the sea has at one period or other not only covered all our plains, but remained there for a long time and in a state of tranquility.

2d. That there has been at least one change in the basin of the sea which preceded ours: it has experienced at least one revolution.

3d. That the particular portions of the earth, which the sea has abandoned by its last retreat, had been laid dry once before, and had at that time produced quadrupeds, birds, plants, and all kinds of terrestial productions: it had been inundated by the sea, which has since retired from it, and left it to the possession of its own proper inhabitants.

Thus we see that the accounts of Moses, and the results attained by Geology, or the study of the structure of the world, coincide, and derive light and support from each other.

1. The prevalence of the waters at the period of the Creation described by Moses :

2. The separation of the land from the water, producing a revolution in the basin of the sea:

3. The irruption of the sea over the continent, are satisfactory coincidences between the Sacred Historian and the Geologist.

LECTURE II.

Objects of Geology-its utility to the Farmer, Miner, and Architect. Position of Rocks-division of them into classes. Observations on the Primary Rockson the Transition-Secondary--Tertiary--and Alluvial. Organic Remains. Divisions of the Earth's Surface— Bottom of the Sea-Dry Land-Low Land-Alpine Land. Mountain Groups and Chains. Observations on the Position and Declivities of Mountains. Vallies.

From the view of Theories which I have offered to you in the last lecture, it will be seen that Geology is the science purporting to illustrate the structure, relative position, and mode of formation of the different substances composing the crust of the Earth. It aspires to record events of that period of time, when not only the Earth, but the whole planetary system was uncreated. It is by induction only, however, that we explain phenomena, and assign causes to effects that have operated in former times, and thence down to the present day, through a succession of ages.

By induction is to be understood that process, by which, upon comparing a number of cases, agreeing in some circumstances, but differing in others, and all attended with the same result, a Philosopher connects, as a general law of Nature, the event with its physical cause.—According to Bacon "Inductio, quæ ad inventionem et demonstrationem scientiarum et artium erit utilis, naturam separare debet, per rejectiones et exclusiones debitas," &c. &c.-Nov. Org. Lib. 1, Aph. 106.

To the admirers of Nature's works, Geology offers new treasures of enjoyment, and viewing the sublime or beautiful scenery which surrounds him, he has greater cause than ever for admiration, in its powers of adaptation to the purposes of life; and exclaims with the melancholy, but pious Young

An humble, pure, and heavenly minded heart

Is here inspired.

In referring to the phenomena of Geology, a pure and classic writer has observed, that, few questions are more calculated to excite the speculative enquirer, or more fascinating from the grandeur and novelty of the objects it brings before the mind. Nor can it be said to satisfy nothing but a vain curiosity. The maxim is too well established by the history of science to require