A pictorial atlas of fossil remains, consisting of coloured illustrations selected from Parkinson's "Organic remains of a former world," and Artis's "Antediluvian phytology." . re compact masses of the rock. The substance of the corals, beinfsiliceous, resists the action of the cataract, while the softer calcareous matter which filled up theinterstices of the tubes, lamellas, &c. of the zoophytes, is washed away atom by atom; and naturaldissections are formed, which art would in vain attempt to imitate. Dr. Yandell, of the MedicalCollege, Louisville, and Dr. Clapp, of New Albany, have splendid
A pictorial atlas of fossil remains, consisting of coloured illustrations selected from Parkinson's "Organic remains of a former world," and Artis's "Antediluvian phytology." . re compact masses of the rock. The substance of the corals, beinfsiliceous, resists the action of the cataract, while the softer calcareous matter which filled up theinterstices of the tubes, lamellas, &c. of the zoophytes, is washed away atom by atom; and naturaldissections are formed, which art would in vain attempt to imitate. Dr. Yandell, of the MedicalCollege, Louisville, and Dr. Clapp, of New Albany, have splendid collections from the Falls,which every geologist and intelligent traveller who visits Kentucky should not fail to examine:the masses of Astrea3, JNIadrepores, &c. are so fresh in their aspect, as not to be readily dis-tinguished from the recent specimens of the same genera which are placed beside them. Fig. 5, is a transverse section of a mass of chain-coral from Dudley. Fig. 6. The same, as seen by transmitted light. See Sir Cliarles Lyells Travels in the United States; and Drs. Yandell and Shumards Contributions to the Geology ofKentucky. Louisville, 18i7. 26. FOSSIL FAUNA. 91 PLATE XXXVI. Various Fossil Corals from different Formations. Figs. 1, 2, 3. (^CyatJiophyllum turbinatum, of Goldfuss.) These three turbinated or top-shapedcorals are referable to a genus of whicli many species are exceedingly abundant in theWenlock or Dudley limestone of the Silurian System. They belong to the Anthozoa,or flower-like corals. The living animal, of which the coral is but the durable earthyfabric or skeleton, bore a close analogy to the sea-anemone, or animal flower {Actinia),of our coasts. Each of these specimens belonged but to a single animal: the Cyatho-pliylla are not, like the tublpores previously described, an aggregation of numerousindividual polypes. Fig. 4. A small coral (Fimgia) from Dudley. Fig. 5. On this block of mountain limestone there are the remains of two different kin
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