ON THE DRIFT AT MOEL TRYFAEN. 419 
with. These are points which can be investigated as well as ever in 
extensive sections, which the quarrying will keep clear and open. 
It must not be supposed that the Moel Tryfaen sections are being 
- destroyed as a whole. It is the part specified only that is perishing ; and 
the drifts of the quarries will continue to furnish ample scope for research 
into many matters of great importance to glacial geology for many years 
to come. 
APPENDIX A. 
Notes by Chairman and Members. 
(a) §10.—Some of the best preserved specimens sent to me by Mr. 
Menzies from the drift in the Alexandra Quarry have adhering to them a 
fine loamy sand, and it is in such a material, interstratified with sand and 
gravels, that I have usually obtained the best specimens of shells in the 
Welsh sections. (H. H.) 
(8) §10.—In addition to boulders of North Welsh rocks, they are full 
of far-travelled erratics from the Lake District and the South of Scotland. 
(y) §11.—This deposit, therefore, differs widely in regard to its 
included stones from the underlying sandy group, which contains many 
far-travelled erratics, as before stated ; as it does also in the apparent 
absence of marine shells and of Foraminifera. 
(8) §13.—P. F. Kendall and J. Lomas would prefer to say that the 
general direction of displacement had only a few individual exceptions, 
which might indeed be due to quarrying operations. 
(c) §13.—This material was not observed by the Committee to contain 
any glacially striated fragments or any foreign stones—no fragments, 
indeed, but of the underlying slates, 
APPENDIX B. 
By T. Metiarp Reape, F.G.S. 
Specimens of the drift were taken by me at the meeting on November 5, 
1898, in the positions shown on the following sections (figs. 5 and 6), and 
‘submitted to Mr. Joseph Wright, F.G.S., of Belfast. 
He very kindly examined them for Foraminifera, and in all discovered 
twenty-three species. The results seem to show that the Foraminifera occur 
in the most abundance in the shelly sand. None were found in the over] ying 
boulder clay (Specimen 4), and a few only in Specimens Nos. 1 and 2. In 
No. 3 the Foraminifera were more plentiful and of species common to the 
low-level boulder clay of Lancashire, Cheshire, and the Vale of Clwyd. As 
usual, Vonionina depressula was common, and far outnumbered the 
other species. 
The high-level drift generally does not appear to have been searched 
much for Foraminifera.. The only other published list from Moel Tryfaen 
that I can find is that given by Miss Mary K. Andrews.! 
» Annual Report, Belfast Naturalists’ Field Ciud, 1894-95, pp. 209, 210. 
HE2 
