OF CARBONIFEROUS VEGETATION IN YORKSHIRE.” 7 
four chief roots at right angles to each other, stretching roughly S.E., 
S.W., N.W., and N.E. From the stump to the bifurcation of the 
root is, approximately in each case, two feet; diameters of roots near 
the stump vary from eight inches to nine inches ; length of root 
exposed, five feet six inches. At the time of this report the remainder 
of the stumps were not bared, and, indeed, owing to the exigencies of 
trade, the whole of them, with one exception, were speedily covered 
up again. The exception I name was presented by the conti’actors to 
the Bradford Free Museum, where it has been appropriately mounted 
and can be readily inspected. Another discovery of a fossil tree has 
been made at Ilkley, aud was first reported by Mr. Pease, a visitor at 
Ben Rhydding. Mr. Hoffman Wood, F.G.S., has given much attention 
to this example, and pioneered by him, I, along with Mr. Brownridge, 
F.G.S., inspected it. This was discovered in a quarry just under the 
bold escarpment which overhangs the valley of the Wharf, and is 
very near to the well-known “ Cow” and “ Calf” rocks. The stone 
is of the third grits in the millstone grit series, known also as the 
Addingham Edge Rock. In character it is a coarse, massive grit 
stone, and in one of the vertical faces of the rock just uncovered there 
lies partially exposed, in a horizontal position, the straight cylindrical 
stem of a small fossil tree. At our visit the length exposed was nine 
feet two inches, with a diameter atone end of twelve inches, and of nine 
inches at the other. When first revealed it was covered with a carbon¬ 
aceous bark ; but assiduous relic hunters, with more idle curiosity 
than love for science, have carefully removed every vestige. Now 
that the bark has been removed, there can be seen small ridares ru nn ing 
round the trunk at distances varying from one-and-a-half to three 
inches. At the thinner end can be faintly discerned small hollows, as 
if caused by excrescences on the bark. These are irregular in position. 
Specimens of fossil vegetation from the millstone grit do not, generally 
speaking, retain much of their structure ; and in the absence of 
sections, ivhich were impossible to obtain, it could not be positively 
identified. However, from its appearance, it is more than probable 
that it has been a conifer, possibly a Dadoxylon. Since our visit, Mr. 
Wood reports that the tree has been further uncovered to a length of 
twenty-five feet, and also that within a radius of thirty feet from this 
example, the remnants of five more specimens are now visible. This 
has evidently been a drifted mass of vegetation, embedded in the sand 
banks of the millstone grit period. The description of these fossils 
was much enhanced by reference to diagrams of the same, which had 
been carefully drawn to scale by Mr. C. Brownridge, F.G.S.,to whom 
