Reporis and Proceedings — Geological Society of London. 571 



supplement each other to a certain extent ; both are incomplete, and 

 much epitomized representatives of thicker deposits elsewhere. 



(10) Mr. Thompson's zonal scheme for the Upper Lias is considered, 

 and a table of Upper Lias zones for future work is presented. 



2. "Certain Jurassic ('Inferior Oolite') Ammonites and Brachio- 

 poda." By S. S. Buckman, F.G.S. 



This paper is presented as a palaeontological appendix, partly to 

 the autlior's accompanying communication, partly to his previous 

 stratigraphical work. In a short introduction the author, remarking 

 on the fecundity of the ' Inferior Oolite ' in the matter of species, 

 makes the suggestion that this is due to the relatively great length of 

 time taken up in its deposition ; and he adduces data for supposing 

 that the time thus occupied was from one-fifth to one-fourth of that 

 for the whole Jurassic System. 



The paper describes certain species of Ammonites and Brachiopoda 

 which are important for the identification, the correlation, or the 

 dating of Inferior Oolite deposits, and certain other notable species 

 which, having frequently attracted attention in the field, require 

 naming in the interest of future workers. 



3. " The Granite Eidges of Kharga Oasis : Intrusive or Tectonic ? " 

 By William Fraser Hume, D.Sc., A.R.S.M., F.G.S. 



The author quotes the detailed records given by Mr. Beadnell in 

 his paper published in the Quarterly Journal for February, 1909 

 (vol. Ixv, p. 41), and although in entire agreement with the facts 

 there stated, differs with regard to the interpretation of those facts. 

 Whereas Mr. Beadnell regards the granite as intrusive, on account of 

 the high dip of the sedimentaries, and the changes which they exhildt 

 as regards colour and hardness, near the granite, the author considers 

 that the dips are due to fold-movements almost at right angles to one 

 another, since they lie on the same line as the crater-like basins, 

 the rims of which are formed of the compact and steeply-dipping 

 limestones of the Lower Eocene, and he adduces as further evidence 

 the fact that dykes and quartz-veins penetrating the crystalline rocks 

 cease abruptly at the edge of the sandstone. He attributes the bright 

 hues and silicification found near the contact to gases and heated 

 waters acting along the boundary between the dissimilar rock-masses. 



4. " The Cretaceous and Eocene Strata of Egypt." By William 

 Eraser Hume, D.Sc, A.E.S.M., F.G.S., Superintendent, Geological 

 Survey of Egypt. 



The author divides the fossiliferous Cretaceous strata into three 

 series — 



(1) A northern Antonian type, marked by Cenomanian species, 

 including typical Turouian strata. 



(2) A central Egyptian or Hammama type, Cenomanian strata 

 being absent, Campanian marked by abundance of Ostrea villei and 

 Trigonarca midtidentata, and phosphatic beds ; the Danian portion 

 having an eastern facies in which Peden-VLi^x\'s, are a characteristic 



