PEOCEEDIXGS OF GEOLOGICAL SOCIETIES. 
71 
posits from the Old Eed " cornstone," upwards, was shown by them to be : 
— I. Laminated yellow sandstones, with pebble-beds and sands. 2. Bright- 
yellow sandstones, containinor Pternclithys. 3. Brecciated yellow sand- 
stones, pebble-beds, sandy layers, and laminated sandstones. 4. Sandy 
and concretionary limestone. 5. Grey oolitic limestones, containiEg pala- 
tal teeth of great size. 6. Clays, with ferruginous bands. 7. Shaly cri- 
noidal limestones. 8. Clays with limestone concretions, and shaly lime- 
stones. Against the last-mentioned bed the Millstone Grit rests uncon- 
formably. These beds thicken out at Oreton, a mile east of this Farlow 
section, and are there extensively worked for various economic purposes, 
the oolitic limestones, locally termed " jumbles," being used for decorative 
purposes under the name of Clee Hill Marble. In describing the physical 
conditions of the localities, mention was made of the " Mole river," which, 
losing itself at the west end of the ridge, takes a subterranean course 
nearly parallel with its axis, and reappears at its lower end, a mile distant. 
An interesting fact was communicated to the authors by the Eev. J. Wil- 
liams, of Farlow, of an accidental accumulation in the hollow of its inlet of 
a body of water estimated at 1,635,000 cubic feet, the whole of which was 
carried away in forty-eight hours by the sudden clearance of the channel. 
In describing the palaeontology of these rocks, the authors specially drew 
attention to the fortunate discovery, in the yellow sandstone of Farlow, of 
PterichtJiys macrocepliaJus (spec, nov., Egerton), made while reducing the 
thickness of a large ripple-marked slab sent them by Mr. Weaver Jones in 
illustration of the physical conditions of the deposit. This Pfericldh ys^ro- 
ving identical with the fragment previously found in the Farlow Sandstone 
by Thos. Baxter, Esq., F.G.S., they attached to the paper a descriptive note 
on that fossil, by Sir Philip Egerton, in which the Farlow Pteric/ithi/sviras 
contrasted with that of Dura Den, and additional proof given of the identity 
of the genera Pamj)kractus and Pterichtliys. In addition to pterichthyoid 
remains, scales of two species of Holoptychius, one probably new, had been 
found by them. The richness of the overlying limestones in palatal teeth 
was shown by a fine series of examples, amongst which Orodus /^amosus, of 
unusual size and in perfect condition, and an undescribed Pacilodus, of 
great magnitude, were most conspicuous. Other genera represented were 
Helodus, Psammodus, Cladodus, CucMiodus, Petulodus, and Ctenopty- 
cJiius. Ichthyodorulites, of large size and rich ornament, chiefly belong- 
ing to the genera Ctenacantlius and Oracanthus, accompany these teeth. 
The notices of the invertebrate fauna given by the authors proved the as- 
sumed lowness of the Oreton Limestones in the Mountain Limestone series 
— the zone of RJiynconella pleurodon being well marked, crinoidal and 
bryozoan remains abundant though fragmentary, and corals nearly absent. 
A large series of Pterichthyes and of rock-specimens were exhibited in il- 
lustration by Mr. George E. Eoberts ; and a collection of palatal teeth 
was liberally sent for exhibition by W^. Weaver Jones, Esq., of Cleobury 
Mortimer, and by Edward Baugh, Esq., of Bewdley. 
2. " On some Fossil Plants, showing Structure, from the Lower Coal 
Measures of Lancashire." By E. W. Binney, Esq., F.B.S., F.G.S. After 
noticing the views taken of the structure of Lepidodendron by Hooker and 
others, the author proceeded to describe three portions of calcified stems, 
Lepidodendroid in external appearance, two of which exhibit in section a 
central axis composed, not of cellular tissue, but of large, transversely 
barred, hexagonal vessels. These two specimens the author refers to a new 
species, Sigillaria vascularis. The third specimen differs from the others 
in the absence of the thin radiating cylinder of barred vessels around the 
central axis ; this he terms Lepidodendron vasculare. Microscopical pre- 
parations and photographs of sections were supplied by the author. 
