On February 20th, 1866, Mr. Binney gave to the Literary and Philosophical Society of Manchester a brief description of a new plant from the Lower Carboniferous beds of the neighbourhood of Oldham. The following extracts from the ‘Proceedings’ of the Society embody some of the chief points of that description. “It evidently belonged to the genus Pinites of Witham, since changed by Endlicher and Brongniart into Dadoxylon .” It “has a medullary axis composed of irregular polygonal cells separated by intervening spaces vertically, and thus forming a kind of discoid pith.” “This is separated from lunette-shaped bundles of hexagonal tubes arranged in a convex form from the pith inwards, and lessening in size as they pass outwards into wedge-shaped masses of four-sided subhexagonal cellules arranged in radiating series, and divided by large medullary rays or bundles, which appear to originate in the lunette-shaped masses. On the outside of this internal radiating cylinder are other lunette-shaped bundles similar to those in the inside.” “Then comes a narrow zone of lax tissue, which has been a good deal disarranged. Outside this are some thin wedge-shaped bundles of cellules full of dark carbonaceous matter, and arranged in radiating series of varying sizes, separated by lax tissue, probably representing the bark of the tree.”