PROCEEDINGS OE GEOLOGICAL SOCIETIES. 



265 



across the widest part of the valley, and were embedded in the gravel, six 

 feet below the surface. They belong to the genus JEquus. The flint was 

 picked out from amongst the materials thrown out of the trench. 



Geological Society. — May 20th, 1863. — 1. " Further Observations on 

 the Devonian Plants of Maine, Gaspe, and New York." By J. W. 

 Dawson, LL.D., F.E.S., F.G.S. 



Since the preparation of his paper on the Devonian Flora of N orth- 

 Eastern America, published in the Society's Journal, vol. xviii. pp. 296 

 et seq., the author has been enabled to explore more thoroughly than be- 

 fore the plant-bearing beds of Perry, in Maine, Gaspe, and New York. The 

 results of these further explorations, together with descriptions of the new 

 species of plants discovered, were given in this paper ; as also were some 

 new and important facts respecting the distribution of the Devonian rocks 

 of the State of New York, which give to several of the plants from that 

 region a somewhat older geological position than that heretofore assigned 

 to them. 



2. " Notice of a New Species of Dendrerpeton, and of the Dermal Cover- 

 ings of certain Carboniferous Eeptiles." By J. W. Dawson, LL.D., F.E.S. 



This paper referred to new facts ascertained in the course of a re-exami- 

 nation of the remains of reptiles from the Coal-formation of Nova Scotia, 

 and first to the characters of a new and smaller species of Dendrerpeton, 

 for which Dr. Dawson proposed the name of D. Oweni. The author then 

 described the remains of skin and horny scales which he had lately dis- 

 covered, and which he supposed to belong to Dendrerpeton Oweni, Hylo- 

 nornus Wymani, and //. Lyelli. He also gave restorations of these ani- 

 mals, according to what he regarded as the more probable arrangement of 

 the parts ; and, after expressing his belief that Sylonomus may have 

 Lacertian affinities, he stated that should they prove to be really Batra- 

 chian, a new Order must be created for their reception, many of the 

 characters of which would coincide with those of the humbler tribes of 

 lizards. 



3. " On the Upper Old Red Sandstone and the Upper Devonian Pocks." 

 By J. W. Salter, Esq., F.G.S., A.L.S. 



The conclusions arrived at by Mr. Salter were based upon certain sec- 

 tions in Pembrokeshire, Devonshire, and the North and South of Ireland, 

 which he described in full, and compared with one another as well as with 

 the Upper Devonian of the Continent and America, giving lists of fossils 

 from the English localities. The sections in Devonshire and South Ire- 

 land were contrasted with those in Pembrokeshire and North Ireland ; 

 and it was shown that, although the physical features in the two cases 

 very nearly correspond, the Marwood series is constant, and the Pilton 

 group of the former districts is a series unknown in Pembrokeshire, or 

 only represented by beds, a few feet thick, at the base of the Carboniferous 

 slate. The author endeavoured further to prove the intercalation of 

 marine beds in the Upper Old Eed Sandstone, and, by the fossils, the cor- 

 relation of the Marwood group of Devonshire with the uppermost part of 

 that series. He stated his belief in Sir P. I. Murchison's suggestion, that 

 the Caithness Flags belong to the Middle, and the Cephalaspis Beds of 

 Scotland to the Lower Old Eed, which divisions he considered equivalent 

 to the Middle and Lower Devonian respectively ; and concluded by assign- 

 ing the Tilestones (or Ledbury shales) to the Lowest Devonian. 



June 3rd. — " On the Section at Moulin- Quignon, and on the peculiar 

 character of some of the Flint Implements found there." By J. Prest- 

 wich, Esq., F.E.S., F.G.S. 



The recent discovery of a human jaw and of flint implements of a pecu- 



YOL. YI. 2 M 



