34 
CLENT HILLS BRECCIA. 
grinding together of the rocks, as at Abberley, or that the rocks 
might have been scratched before the Permian period, and detached 
with these marks on them. If we searched a scree shoot in Scot¬ 
land, Wales, or the Lakes, could we not easily find, if we searched 
for three years, three scratched rocks? We _ should find many 
more. I cannot, because a few scratched rocks are found in 
detritus, assume that it was deposited by glaciers. It; is perhaps, 
however, possible that there were short glaciers on the mountains, 
from which the rocks were derived. 
(5) The dissimilarity between the Clent and Abberley Breccias. 
(6) The remarkable angularity of the majority of the stones, 
and that the softer stones, notwithstanding the great tendency to 
attrition, retain, as a rule, their angularity. Is this consistent 
with anything else other than a close source of origin ? 
(7) Supposing we can prove that the Carboniferous and Permian 
Sandstone, which can only be found on Wychbury, belongs to the 
Breccia, what deduction are we to make from it ? The pro¬ 
babilities of finding these rocks on the northern hill seem to be 
greatest, if we consider that the coal measures are thicker to the 
north than the south, and so more material. 
(8) That the largest stones are found on the western sides of the 
hills. 
(9) That there have been very considerable earth movements 
in this region, which is consistent with a succussion of the rocks 
and reaggregation. 
(10) Objection has been taken to the reaggregation of the 
rocks taking place by any agency, except ice, on account of their 
size. The largest rock I have found is 1' 7" X 1' 3" x 1', but 
there may be larger. This point can be easily met by referring to 
a paper on the nature and probable origin of the superficial 
deposits in the valleys and deserts of Central Persia, by W. T. 
Blandford,“ Quarterly Journal Geological Society,” Yol. 29, p. 493, 
where he describes a deposit of large and small pebbles, gravel, 
clay and sand of geologically recent origin which cover an enormous 
area in Central Persia. The deposit is remarkable because of the 
small rainfall there and consequent general absence of rivers. The 
February, 1893. 
