Notices of Memoirs — Prof. LapwortlCs Address. 415 



M. Laurie. — The Eurypterid Fauna of the Silurian Eocks. 



Prof. T. B. Jones. — Report of the Committee on Fossil Phyllopoda. 



B. B. Newton. — On the occurrence of Chonetes Fratti (Davidson) in 

 the Carboniferous Eocks of Western Australia. 



A. Smith Woodward. — Eeport of the Committee on the Eegistration 



of Type Specimens. 

 G. B. Vine. — Report of the Committee on the Cretaceous Polyzoa. 



C. Davison. — Report of the Committee on Earth Tremors. 

 A. Harker. — On Porphyritic Quartz in Basic Igneous Rocks. 



Dr. H. J. Johnston- Lavis. — The Occurrence of Pisolitic Tuff in the 



Pentlands. 

 W. W. Watts. — Notes on some Limerick Traps. 



Titles of Papers bearing upon Geology Read in other Sections : — • 

 Section A. — Mathematical and Physical Science. 

 Eeport of the Committee on Meteoric Dust. 



Report of the Committee on the Seismological Phenomena of Japan. 

 Eeport of the Committee on Underground Temperature. 



Section D. — Biology. 



E. 0. Forbes. — Eemarks on a Series of Extinct Birds of New Zealand, 



recently discovered. 

 W. Carruthers, F.B.S. — On the structure of the stem of a typical 



Sigillaria. 

 T. Hick. — On Calamostachys Binneyana. 

 A. C. Seward. — Notes on specimens of Myeloxylon from the 



Millstone Grit and Coal-measures. 



Section H. — Anthropology. 

 H. 0. Forhes. — On the Contemporaneity of Man and the Moa. 

 Eeport of the Prehistoric Inhabitants Committee. 



II. — Bkitish Association for the Abvancement of Science, 

 Edinburgh, 1892. 



Address to the G-eological Section by Professor C. Lapworth, 

 LL.D., F.R.S., F.G.S., President of the Section. 



It has, I believe, been the rule for the man who has been honoured by election 

 to the Chair of President of this Geological Section of the British Association to 

 address its members upon the recent advances made in that branch of geology in 

 which he has himself been most immediately interested. It is not my intention 

 upon the present occasion to depart from this time-honoured custom ; for it has 

 both the merit of simplicity and the advantage of utility to recommend it. In 

 this way each branch of our science, as it becomes in turn represented, not only 

 submits to the workers in other departments a report of its own progress, but 

 presents by implication a broad sketch of the entire geological landscape, seen 

 through the coloured glasses, it may be, of divisional prejudice, but at any rate 

 instructive and corrective to the workers in other departments, as being taken 

 from what is to them a novel and an unfamiliar point of view. 



Now every tyro in geology is well aware of the fact that the very backbone of 

 geological science is constituted by what is known as stratigraphical geology, or 

 the study of the geological formations. These formations, stratified and 

 unstratified, build up all that part of the visible earth-crust which is accessible to 



