414 Geological Society : — 



that is to say, that they belong to the latest stages in the 

 Pleistocene erosion of the valley, and are not remnants of earlier 

 deposits. 



One of the sections described appears to suggest that the climate 

 became nearly as temperate as that of the present day before the 

 mammoth and woolly rhinoceros became extinct. 



April 28th.— Dr. A. Smith Woodward, F.R.S., President, 

 in the Chair. 



The following communications were read : — 



1. 'A Composite Gneiss near Barna in the County of Gal way.' 

 By Prof Grenville A. J. Cole, F.G.S., M.R.I.A., Director of the 

 Geological Survey of Ireland. 



The great mass of granite west of Galway town is seen on its 

 northern margin to be intrusive in a metamorphosed series of 

 Dalradian quartzites, limestones, and mica- schists, and has received a 

 foliation which is parallel with the bedding of this series ; this folia- 

 tion is ascribed by the author to the partial absorption of sheets 

 of the bedded series into its mass. Traces of similar intermingling 

 occur in Townparks (Galway town) and west of Barna. At Furbogh 

 Bridge, the granite contains pink ciystals of orthoclase, at times 

 10 cm. long in the direction of the vertical axis, and these have 

 become stranded, as it were, among the foliation-planes of dark 

 green biotite- schist, into which they weve carried by an intimate 

 intermingling of the granite with the schist into which it flowed. 

 Quartz and smaller felspar-crystals from the granite abound in the 

 resulting composite gneiss, and the general effect is comparable 

 with that of igneous intermixtures described from County Down 

 and Skye. In the Galway instance, however, there is no sign of 

 general fusion of the invaded rock, which retains its original 

 foliation and controls the structure of the composite mass. 



2. 'Further Work on the Igneous Rocks associated with the 

 Carboniferous Limestone of the Bristol District.' By Sidney Hugh 

 Reynolds, M.A.,Sc.D.,F.G.S v Professor of Geology in the University 

 of Bristol. 



The paper gives an account of the additional information, con- 

 cerning the Carboniferous volcanic rocks of North Somerset, which 

 has become available, largely through digging trial-holes, since the 

 publication in the Q. J. G. S. for 1904 (vol. lx) of a paper by Prof. 

 Lloyd Morgan and the author on the subject. The rocks occur 

 at five localities : — (1) Goblin Combe ; (2) Uphill ; (3) Limeridge 

 Wood, Tickenham ; (4) Spring Cove and Milton Hill, Weston- 

 super-Mare ; and (5) Woodspring or Middle Hope. 



