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The structures referred to may justly be called fossil, since they present strong evidence of being the useless remains of structures which played an active part in the bodies of some former animals.
No sooner is Agassiz returned from the glacier than we meet him again in the domain of his fossil fishes. NEUCHATEL, December 15, 1842. . . .In the last few months I have made an important step in the identification of fossil fishes.
In this room, however, the visitor will notice the progress of early creation first, the zoophytes; then the fish lizards; then the fossil ruminants; then the fossil carnivora. Examples of these fossil remains are all included in the room which the visitor has now reached.
In the upper layer of the quarries was discovered a fossil pine-tree, upwards of thirty feet in length, and a foot in diameter, with two or three branches. Next morning we and the Dolphin again got under weigh, and the wind being off shore stood close round the Bill of Portland, having the Shambles light-vessel, which has a single fixed light, on our port beam.
At three miles, however, our further course along the flats was checked by the hills of fossil formation, which approached the river so closely as to leave no passage for the drays between it and them.
'Gentlemen, I said to them, 'what is there for us in tide-water at Kings Port? It was not to be done, and I rejoined Mrs. Weguelin and those of the party who were making some show of attention to her quiet little histories and explanations; and Kitty's was the next voice which I heard ring out "Oh, you must never let it fall to pieces! It's the cunningest little fossil I've seen in the South."
Amongst existing Vertebrata, we find but a small amount of gradation in the structure of the eye, and from fossil species we can learn nothing on this head. In this great class we should probably have to descend far beneath the lowest known fossiliferous stratum to discover the earlier stages, by which the eye has been perfected.
J.E. Lee of Caerleon, F.G.S., in shale below the Aymestry limestone, associated with fossil shells of the Lower Ludlow formation shells which differ considerably from those characterising the Upper Ludlow already described.
We are concerned here simply with man's ancestor and man in his earliest stage of existence, not with man in his later course of development. The question has often been asked, if man has descended from an ape ancestor why is it that no traces of this ancestral form have been found in a fossil state? If man has gone through such an extended course of development, why has he left no remains?
And now one of the richest known accumulations of fossil mammals, for its thickness, belongs to the middle of the secondary series; and one true mammal has been discovered in the new red sandstone at nearly the commencement of this great series.
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