On revisiting the South Joggins in the past summer, principally with the view of collecting material for the further prosecution of my researches on the structure of coal, I was informed by Mr. Boggs, the superintendent of the mine at that place, that a second erect tree had been exposed by the wasting of the cliff, in the bed which had afforded to Sir Charles Lyell and the writer in 1851 a fossil stump containing the remains of Dendrerpeton Acadianum and other terrestrial animals. I at once proceeded to the place, and found, still in situ in the ledge at the base of the cliff, the lower part of an erect trunk, about fifteen inches in diameter, and much more richly stored with animal remains than that previously found. It was carefully removed from the rock, and all the fragments containing fossils carried off for examination. They contain numerous specimens of the land-shell found in the tree previously discovered in this bed; several individuals of an articulated animal, which I believe to be a Myriapod; portions of two skeletons of Dendrerpeton, and of seven small skeletons belonging to another Reptilian genus, and probably to three species. I propose in the present paper to notice the mode of occurrence of the remains in this curious repository, to describe the invertebrate animals contained in it, and to state shortly the characters of the new Reptilian species.