O. Fisher—On the Cromer Cliffs. 147 
CoMPARISON OF THE DevontAn Rocks 1n Sours Devon anp CorNWALL 
WITH THOSE OF THE RHINE. 
RHINELAND AND WEst- 
DEVONSHIRE AND Cor ; 
CornWALL PHALIA. 
3s | 
‘a 3| 5. Grey and greenish slate with nodular/ Clymenia limestone in | 
= oP limestone near Petherwin, Cornwall, with | Nassau (Kirschhofen, near | 
.| en | Clymenia, Goniatites and Spirifer Verneuili. | Weilburg) and Westphalia | 
A|o (Warstein). 
z 4. Red clay-slate of Saltern Cove near Tor-| Goniatite slate of Biide- 
- quay, Devonshire, with Goniatites retrorsus, | sheim. 
5 ie G. auris, Bactrites Schlotheimi, Cardiola re- 
2| 5 3| trostriata, etc. 
a z | Red ironstone, thin conformable limestone, Red nodular limestone of | 
4 3 | and nodular limestone of Lower Dunscombe, | Oberscheld in Nassau, and 
ae by Chudleigh, with Goniatites intwmescens, G. | of Adorf in Waldeck. 
| multilobatus, Orthoceras, etc., Phacops cryp = 
tophthalmus, Coccosteus, sp. indet. 
3. Compact grey limestone of Newton | Paffrath limestone(Stringo- 
- | Bushel, Torquay, Plymouth, with Stringo-| cephalus limestone) by 
a4 | cephalus Burtini, Uneites gryphus ; Megalodon | Patirath, Elberfeld Schwelm 
5 z cucullatus ; numerous corals. and in the Eifel. 
aH > EMV Cit i). ).,. oe a ae, oe oe ee ae = 
a 5 2. Grey or yellowish clay-slate of Ogwell| Eifel limestone. 
House, Torquay, with Calceola sandalina ; 
Brachiopoda ; Fenestella, etc. 
z 1. Clay-slate of Looe, Cornwall, with Coblentz Grauwacke 
BS | Pteraspis ! sp., Pleurodictyum problematicwn, | ( Spiriter sandstone” of 
2 | Orthis laticosta, Clay-slate of Meadsfoot Sands, | the brothers Sandberger.) 
42 | near Torquay, with Homalonotus, sp. | 
EXPLANATION OF PLATE YV. 
Fics. 1 and 2.—Goniatites multilobatus, Beyr. (=G. sagittarius, Sandb.) 
Fic. 3.—Median dorsal plate of Coccosteus (near to C. oblongus, Ag.). 
All from the Upper Devonian Goniatite Limestone of Lower Dunscombe near 
Chudleigh, South Devonshire (all natural size). 
IIl.—On tHe Cromer CLIFFS. 
By Mr. O. Fisuer, M.A., F.G.S. 
HAVE read with much interest Mr. Reid’s paper on the Glacial 
Deposits of Cromer. It is a valuable contribution towards the 
elucidation of a difficult subject. I cannot, however, think that at 
present the mode of accumulation of glacial deposits is finally 
settled. The old people, among whom 1 count myself, used to 
consider these heterogeneous mixtures to have been dropped from 
floating-ice, or to have gone down, ice and all, to the bottom of the 
sea, when so much of the ice had been thawed that the mineral 
matter exceeded one-twentieth of the whole bulk.2. Now, however, 
many of the younger geologists, and especially those connected with 
the Survey, attribute much more importance to the action of great 
glaciers or ice-sheets, enveloping not only whole countries, but also 
filling up and advancing over what are at present sea-beds. 
1 Pt. cornubicus. 2 Grou. Mac. Vol. V. 1868. p. 550, note. 
