444 Geological Society : — 



as illustrative of interesting but somewhat obscure Ferns ; and he 

 particularly requests that search should be made in the Oolites of 

 Yorkshire for specimens of Pachypteris with pinnules having a 

 single midrib. Sig. de Zigno supports Sternberg and Bronn in the 

 suggestion that under tlie term Equisetites columnaris authors have 

 confounded two distinct forms ; one from Brora and Yorkshire, with 

 thick joints, and illustrated by Kcinig ; the other being found in the 

 Lias and Trias. Some remarks on the probable relations of Glos- 

 sopteris and Sagenopteris foUow. 



The remains of Ferns in Jurassic beds of the Venetian Alps are 

 numerous, though the species are few. The fructification is often 

 evident ; and the epidermis of the fronds can be sometimes separated 

 for microscopical examination. The Cycadea have more species; 

 and the Conifera. (especially the Brachyphylla) are numerous. 



3. " On a Group of supposed Reptilian Eggs {Oolithes Bathonicce) 

 from the Great Oolite of Cirencester." By Professor J. Buckman 

 F.G.S. 



The specimen referred to was obtained by Mr. Dalton from tlie 

 Harebushes quarry near Cirencester, and presents evidence of a com- 

 pact cluster of eight oval bodies (each about 2 inches long and 1 inch 

 across) in a mass of oolitic rock. These oval bodies being equally 

 rounded at the ends, and in this differing from birds' eggs, the 

 author thinks that they must have been the eggs of a reptile. The 

 egg-shells were very thin, have been here and there puckered by 

 Ijressure, and are more or less occupied with calc-spar. 



4. " On some Sections of the Strata near Oxford." No. I. By 

 Professor Phillips, Pres. G.S. 



In this communication Professor Phillips gave the details of sec- 

 tions showing the base and the top of the Great Oolite in the 

 Valley of the Cherwell. This oolite, with sandy layers below and 

 variable argillaceous beds above (capped by the Cornbrash), has 

 been entirely referred to the Great Oolite formation by the Geolo- 

 gical Survey, and has been traced through Northamptonshire to the 

 cuttings in the Great Northern Railway near Stamford and Grant- 

 ham ; and continues through Lincolnsliire to the Humber. On the 

 north of that river this series is continued by the Oolite of Brough 

 and Cave, and is recognized again in the Millepore-rock at the 

 base of the Gristhorpe Cliffs. Hence it appears that the calca- 

 reous shelly beds of Gristhorpe on the Yorkshire coast are still to 

 be assigned, as they were in earlier works, to the Great Oolite 

 group, notwithstanding the fact that they contain a few fossils 

 which in the South of England are prevalent in the Inferior Oolite, 

 together with many the distribution of which is not there limited 

 to one member of the Great or Bath Oolite series. 



