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Klaproth adds that he entirely agrees with the learned Jesuit, but maintains that the word calamite, to designate the little green frog, called to-day le graisset, la raine, or la rainette, is essentially Greek.

He had lately obtained a specimen of calamite with the bark on which showed a nucleal cellular pith, surrounded by canals running lengthwise down the stem; outside of these canals wedges of true vascular structure; and lastly, a cellular bark.

Mr. Duncan, after next referring to the remains of what he deems a land plant, derived from the same deposit, and which, though sadly mutilated, presents not a little of the appearance of the naked framework of a frond of Cyclopterus Hibernicus divested of the leaflets, goes on to describe the apparent calamite of the formation.

The best preserved vegetable remain yet found in Denholm Hill quarry," he says, "is the radical portion of what we cannot hesitate to call a species of calamite.

In its lowest fossiliferous beds we detect a Lycopodite which not a little resembles one of the commonest of our club mosses,—Lycopodium clavatum,—with a minute fern and a large striated plant resembling a calamite, and evidently allied to an existing genus of Acrogens, the equisetaceæ.