EXPLANATION OF THE PLATES. 



Plate 



1. — Fossil Fern, to illustrate Mr. Bunbury's paper on a peculiar Fossil 



Fern from the Sydney Coal-field To face p. 31 



2, — Isothermal Map of the World, to illustrate Mr. Hopkins's 



paper on the Causes of the Changes of Chmate 92 



3. — Reptilian Foot-track, to illustrate Capt. Brickenden's paper on 

 the discovery of the foot-prints and remains of Reptiles in the Old 

 Red of Moray 98 



4. — Telerpeton Elginense, to illustrate Dr. Mantell's paper descrip- 

 tive of that Reptile 105 



5. — Fossil Shells, to illustrate Prof. E, Forbes's paper on the Extinct 



LandShells of St. Helena 198 



6. — Geological Map of East Canada, -i 



7. — Plan OF the Field with Exposed RocK-suRFACES, > 212 



8. — Enlarged portions of the Rock-surfaces, J 



To illustrate Mr. Logan's paper on the Potsdam Sandstone Foot- 

 tracks. 



9. — Protichnites septemnotatus, 



10. — Protichnites octonotatus, 



11. — Protichnites latus, 



12. — Protichnites multinotatus, y 224 



13. — Protichnites lineatus, 



14. — Protichnites alternans, 



14 A. — Protichnites, 



To illustrate Prof. Owen's paper on the Potsdam Sandstone Foot- 

 tracks. 



15. — Sections, -i 



16. — Fossil Shells, / 



To illustrate Mr. Prestwich's paper on the Thanet Sands. 



17. — Map of parts of Belgium and French Flanders,"] 



2G4 



I 



368 



18. — Eocene Echinodermata and Crania, 



19. — Nipadites, 



20. — Nipadites and Honium, 



To illustrate Sir C. Lyell's paper on the Tertiary Strata of Belgium 

 and French Flanders. 



21. — Pterygotus and Graptolites, to illustrate Mr. Salter's papers 



descriptive of these fossils 392 



22. — Geological Map, to illustrate Dr. Bigsby's paper on the Lake of 



the Woods 400 



23.— Geological Map, to illustrate Prof. Nicol's paper on Cantyre 406 



