404 Prof. T. G. Bonney—Pebbles in the Bunter Beds. 
EXPLANATION OF PLATE XIV. 
Fic. la. “Phasianella”’ striata, Sow. Very young specimen. Coralline Oolite of 
Ness. My Collection. 
se INOS a x Young specimen. Probably from the Coral Rag of 
Ayton. Leckenby Collection. 
yD an »» var. Bartonensis. Coral Rag near Barton. Back 
and front. My Collection. 
3a. Pseudomelania gracilis, sp. n. Coral Rag of Ayton. Back and front. 
Leckenby Collection. 
55 es 55 5, Coral Rag of Brompton. Back and front. Strick- 
land Collection. 
Ra eae Ks Buwignieri, auct. Coral Rag of Nawton. Back and front. 
My Collection. 
sinh. an », Coral Rag of Brompton. Back and front. Strick- 
land Collection. 
5 species, Coral Rag of Brompton. Back and front. My 
Collection. 
SanGs Ap Leymeriei, D’ Arch. Passage-beds of Lower Calcareous Grit. 
Back and front. My Collection. 
7. Oerithium muricatum, Sow. Base of Coralline Oolite, Pickermg. Front 
view and two whorls enlarged. My Collection. 
5, 8a,b,¢. ,,  Russiense, D’Orb. Base of Coralline Oolite, Pickering. Three 
different specimens, with portions enlarged. My 
Collection. 
(To be continued.) 
II].—NoTE on THE PEBBLES IN THE BuNTER BEDS OF STAFFORDSHIRE. 
By Prof. T. G. Boney, M_A., F-R:S:, F.G-S. 
OR many years past I have been familiar with the Trias of 
Staffordshire, but of late I have been noticing more carefully, 
during my occasional visits to that county, the pebbles in the 
Bunter, in the hope of being able to identify the parent rocks from 
which they have been derived. It has already been regarded as 
almost certain that many of them have a northern origin: and with 
this idea in view I observed last summer the lithological character 
of the quartzites near Loch Maree. Although the results at which 
I have arrived are very incomplete, I think more good will be done 
by publishing them than by waiting, because, as it seems to me, 
they settle one or two points of importance, and because a question, 
like that of the origin of the pebbles in a deposit so widely spread 
as the Bunter, is one which can be better determined by a number of 
observers living in different localities than by any one person, 
especially if, like myself, he has but little time to spare for the 
‘investigation. If, however, I can show that one or two points may 
be regarded as fairly certain, it will very much facilitate the work 
of such observers. This work, the careful scrutiny of the contents 
of conglomerates, is one of more importance than may at first sight 
appear, because a rock fragment no less, and sometimes more, than 
a fossil records certain facts in the physical geography of the 
deposit in which it is found. 
The following notes relate chiefly to the northern edge of Cannock 
Chase, within two or three miles of the town of Rugeley. The 
majority of the pebbles in the Bunter beds of this district are 
quartzites. Most of them clearly belong to one variety of this rock. 
