“The second order of fossil vegetables comprehend those which are found in the strata of clay or sand; materials which are the result of slow depositions of the sea and of rivers, agents still at work under the present constitution of our planet. These vegetable remains are found in such flat countries as may be considered to be a new formation. The vegetable organization still subsists, at least in part; and their vegetable substance has suffered a change only in colour, smell, or consistence; alterations which are produced by the development of their oily and bitumenous parts, or by their natural progress towards rottenness. Such are the fossil vegetables found in Cornwall by Borlase; in Essex, by Derham; in Yorkshire by Dela Prime and Richardson; and in foreign countries by other naturalists. These vegetables are found at different depths; some of them much below the present level of the sea, but in clayey and sandy strata (evidently belonging to modern formation); and have, no doubt, been carried from their original place and deposited there by the force of great rivers or currents, as it has been observed with respect to the Mississippi. In many instances, however, these trees and shrubs are found standing on their roots, and generally in low or marshy places above, or very little below the level of the sea. “To this last description of fossil vegetables the decayed trees here described certainly belong. They have not been transported by currents or rivers; but though standing in their native soil, we cannot suppose the level in which they are found to be the same as that in which they grew. It would be impossible for any of these trees or shrubs to vegetate so near the sea, and below the common level of its water. The waves would cover such tracts of land, and hinder any vegetation. We cannot conceive that the surface of the ocean has ever been any lower than it is now; on the contrary we are led, by numberless phenomena to believe that the level of the water in our globe is now below what it was in former periods. We must therefore conclude, that the forest here described grew in a level high enough to permit its vegetation; and that the force (whatever it was) which destroyed it, lowered the level of the ground where it stood.