Voi. 58.1 ASSOCIATED BEDS OF THE MALYERN HILLS, 133, 
are immensely exaggerated: the upper, like the lower, Hollybush 
Sandstones are very glauconitic, and they include conglomerates ; 
moreover, a thickness of about 50 feet of quartzite at Nuneaton is 
replaced in the Malverns by possibly twenty times that amount of 
sandstones and quartzites. Considering this great difference, 
together with the absence in the Malverns and in Shropshire ‘of 
shales resembling the Purley Beds or lowest division of the Stocking- 
ford Shales (which rest directly on the Camp-Hill Quartzite), it seems 
possible that these shales are in part represented by the upper 
portion of the Hollybush Sandstone and of the Comley Sandstone. 
This hypothesis would be in harmony with the behaviour of the asso- 
ciated beds, in so far that the sandy material of the Malvern district 
would be replaced by shales in the Nuneaton district. The upper 
part of the Hollybush Sandstone, however, contains no shales such 
as might possibly on this hypothesis be expected to occur. Here 
again, perhaps owing to the great difference in facies, paleontology 
fails to throw much lght on the question; but it may be noted 
that Hyolithus fistula, which is the most abundant species in the 
Hollybush Sandstone, has also been detected in the Stockingford 
Shales by Prof. Lapworth.’ The view suggested here is, I think, 
rather strongly supported by the fact that the lowest black shales 
in the Malverns include bands of dark glauconitic grit, the finer 
examples of which greatly resemble some of the darker varieties of 
the Hollybush Sandstone; this not improbably indicates that the 
Malvern Black Shales originally passed down by alternation into the 
Hollybush Sandstone. ‘The circumstance that Polyphyma is found 
in the oldest black shales both at Malvern and Nuneaton, taken 
together with this presumed passage in the Malverns, seems further 
to indicate that only a small portion of the sequence at the 
northern extremity of Chase-Hnd Hill is faulted-out. 
(d) The Malvern Quartzite. 
The Malvern Quartzite agrees in position with the Wrekin 
Quartzite, and probably with the Lower Quartzites of Nuneaton, 
and all three are lithologically very similar. In each area there is 
probably a passage upward into the overlying Cambrian beds. 
The Malvern Quartzite has the distinction, among British quartzites 
of this age, in alone presenting fossils other than worm-tubes. It 
contains in places abundantly, Kutorgina cingulata var. Phillipsii, 
together with Hyolithus primevus, sp. nov., H. fistula, and Obolella 
Groomu, sp. nov.; all of which also occur in the Hollybush 
Sandstone, with the exception of the last-mentioned, which hitherto 
has not been detected above the passage-beds into the Sandstone. 
It must be noted, however, that Autorgina Phillipsit, which is very 
common in the Quartzite, becomes much rarer in the Hollybush 
Sandstone, and that the reverse is true of Hyolithus fistula. The 
Quartzite appears to be intimately united to the 
Hollybush Sandstone stratigraphically, lithologically, 
* Geol. Mag. 1886, p. 548. 
