Reports and Proceedings—Geological Society of London. 91 
- Cambro-Silurian. 
Silurian. 
Devonian. 
Carboniferous Conglomerate ) Lower > 
Carboniferous Limestone —_§ Carboniferous. 
Millstone Grit. 
Coal-measures. 
Permian. 
Igneous intrusions in deposits of several ages. 
10. Pleistocene. 
The detailed Annual Report of the Section on the Mineral Industries 
of Canada for 1901 by E. D. Ingall and assistants comes next. The 
report is accompanied by a table of the mineral production of Canada 
for the calendar years 1886 to 1901. 
A very full index and a large number of maps are supplied with’ 
this report, which does much credit to the ability and industry of 
those who have contributed to it. Je J alead de 
CoOrIAnkod 
REPORTS AND PROCHEDINGS. 
——— 
Gerotogicat Socrery oF Lonpon. 
I.—December 19th, 1906.—Sir Archibald Geikie, D.C.L., Se.D., 
Sec. R.S., President, in the Chair. 
The following communications were read :— 
1. ‘The Post-Cretaceous Stratigraphy of Southern Nigeria.” By 
John Parkinson, B.A., F.G.S. 
In this paper, which is a first attempt to outline the sequence of 
the later deposits of Southern Nigeria (now including the Colony of 
Lagos), a series of beds are described from four localities—three from 
the western side of the Niger, and one around Calabar near the 
Kameruns frontier. The alluvium of the river-beds and the lower 
terraces are referred to, and the succeeding sediments grouped under 
three heads. 
The youngest of these, termed the Benin Sands, are of wide 
distribution, and are found extensively developed in all four areas. 
Their almost universal appearance near the coast, and the height, 
occasionally 300 feet, to which their denuded tops are now raised 
above sea-level, indicate an important submergence and subsequent 
elevation in comparatively late times, while from the latter much of 
the present physiography appears to date. The Benin Sands have 
been seen in contact with both the older groups of sediments, but 
unfortunately the work has not proceeded far enough yet to show 
conclusively the relationships of the latter. 
The older of the two, the Lignite Series, occurs typically near Asaba 
on the Niger, although indications of a similar deposit have been met 
with near Moroko, south of Abeokuta; the younger, the Ijebu Series, 
has so far been found only in that district of the Lagos Province. 
These beds are extensively impregnated with bitumen. The suggested 
