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EXCELSIOR:

HELPS TO PROGRESS IN RELIGION, SCIENCE, AND LITERATURE.

EXCELSIOR.

GEOLOGY.

GEOLOGY is a multifarious science. Properly, indeed, it is not one science so much as the application of many sciences to investigating the structure of the globe and the making out of the history of the processes by which that structure. was elaborated. This multifarious nature of geology has its advantages and its disadvantages. One advantage is, that there is no cultivater of any branch of physical science but may apply his knowledge to a part of geology; the corresponding disadvantage is, that no one can properly or fully understand geology who is not acquainted with the general results at least, not of one, but of nearly all the physical sciences. Another advantage is, that no matter where a man's lot is cast, he has but to walk about and open his eyes, and he can study some part of geology; the corresponding disadvantage is, that fully to understand the structure even of his own neighbourhood he ought to travel and see other districts, both of similar and dissimilar structure.

We propose in this series of papers to take a few geological walks with the reader about our own country, and give him a hasty sketch of its structure. In so doing, we must suppose him to have a certain amount of preliminary knowledge. We must take it for granted that he knows a few of the common minerals, and a few of the common