Geological Society of London. 95 
Beds of the London Basin.” By the Rev. A. Irving, B.Sc., B.A., 
F.G.S. 
This paper contained the results of field-work during the year 1887. 
Additional notes on the stratigraphy of the Bracknell and Ascot 
Hills were given, justifying the reading of the country as shown in 
figs. 1 and 2 of the author’s last paper (Q.J.G.S. August, 1887), 
the examination of this line of country having been extended as far 
as Englefield Green. Sections of the beds of the Middle Group as 
they crop out at Cesar’s Camp, Swinley Park, Ascot, and Sunning- 
dale, were described and correlated with the 76 feet of beds which . 
constitute that group in the Well-sections at Wellington College. 
The stratigraphy of the hills known as Finchampstead Ridges has 
been worked out from numerous sections on their flanks; and the 
strata of the Bearwood Hills were correlated directly with them. 
All along the northern margin a general attenuation of (a) the 
Lower (fluviatile) Sands, and of (b) the Middle (green earthy) Sands 
was shown to occur, and in some places on the northern margin they 
are found to have entirely thinned away, admitting of distinct 
overlap at more than one horizon. 
The second part of the paper dealt with the Highclere district, 
where the author believes he has established the full succession of 
the three stages of the Bagshot formation, a section being given 
across the valley south of Highclere Station, showing the succession 
of the whole Eocene series (with the Ostrea bellovacina-bed for its 
base) as it is developed there. 
Some important conclusions were drawn as to the Tertiary physio- 
graphy of the South of England; and the revised tabulation of the 
Tertiaries put forward by Prof. Prestwich at the Society’s last 
meeting was referred to as supporting some of the main points for 
which the author has contended. 
3. “The Red-Rock Series of the Devon Coast Section.” By the 
Rev. A. Irving, B.Sc., B.A., F.G.S8. 
From a recent examination of this section, and from the facts 
furnished by Mr. Ussher’s paper (Q.J.G.S. vol. xxxii. pp. 367 et 
seq.), the author has arrived at the conclusion that the series of red 
rocks between the Lias to the east of Seaton and the Carboniferous 
of Devon, formerly described under the title of ‘‘ New Red Sand- 
stone,” cover the period of geologic time which that term signified, 
and that the lower members of the series belong, not to the Trias, 
but to the Permian or Post-Carboniferous. 
He considered that at the base of the Budleigh-Salterton pebble- 
bed there isa physical break of as much significance as that between 
the Trias and the Permian of the Midlands. From this point east- 
wards the Triassic system is represented by a series of rocks quite 
comparable with the Bunter and Keuper of the Midlands, the Bunter 
being here represented by the Middle Division (about 200 feet thick) 
and the Upper Division of Prof. Hull. 
These pass under the basement sandstone-series of the Keuper 
below High Peak and Peak Hills, are brought up again by faulting 
at Sidmouth, and dip beneath the Keuper again east of the Sid, 
