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CONTENTS.

PRELIMINARY ESSAY ON STRATIFICATION,

Page
1-84

SECT. 1. On the Molecule of the Compact Structure of Rocks, 3.-§ 2. On

the Structure which is determined by the Granular Particles of Rocks, 4.—

§ 3. On the Structure determinable by the Presence of Concretions of

Rocks, 7.- 4. On the Application of Geological Speculations to the va-

rieties of Structure exhibited by Rocks, 10.-§ 5. On the Internal Arrange-

ment of Structure, 19.—§ 6. Of Massive Portions, 30.-§ 7. Of Veins, 33.

-§ 8. Of Mountain Masses, 36.-§ 9. Summary of the foregoing Views

on Stratification, 38.-10. On the Geological Distinctions arising from the

Chemical Composition of Rocks, 41.-§ 11. General Speculations entertained

regarding the Stratification of Rocks, 42.-§ 12. On the Chemical Distinc-

tion subsisting among certain associations of Rocks in the Order of their Su-

perposition, 43.-§ 13. On the Variation of the Mean Density of Rocks, in

the Order of their Superposition, 53.-§ 14. Proofs that the Result of the

Process concerned in the Formation of the Crust of the Globe has observed

distinct intervals of time, 54.-§ 15. Possible existence of a Fluid, which is

supposed to have deposited the Terrestrial Matter constituting the Crust

of the Globe, 57.-§ 16. On the Limited Extent of any individual Rock or

Formation of Rocks, 60.-§ 17. On the Distribution of Rocks of the Pri-

mitive Class, 63.-§ 18. On the Comparative Elevation and Depth of the

Primitive Strata, &c. 71.-§ 19. On a Priority of Date assignable to the

Consolidation of Primitive unstratified Rocks over that of the Strata with

which they are associated, 72.-§ 20. General theoretical Remarks on the

circumstances connected with the Order of Consolidation observed among

Secondary Formations of Rocks, 74.—§ 21. Theories regarding the Line

of Direction, Cross Fracture, and Position exhibited by Strata, 76.

C

SOUTH-EAST DISTRICT OF SHETLAND.

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Ideal sketch, explanatory of the course of primitive strata from one unstratified rock to another.

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