Proceedings. xlvii. 
Ordinary Meeting, May 19th, 1880. 
Joun Fiower, M.A., F.Z.S., President, in the Chair. 
The minutes of the last meeting were read and confirmed. 
Mr. Shadforth Morton was balloted for and elected. 
A paper was read by the PresIDENT “ On the structure and 
Geological History of the Weald, and of the catchment basin 
of the river Wandle” (see p. 64), which was followed by a 
discussion on many of the points referred to in the paper, in 
which Dr. Carpenter, Mr. A. Taylor, Mr. J. Chisholm, Mr. 
Turner, and others, took part. 
The following objects were exhibited :—Mr. John Berney, 
pellet of owl, found at North End; Mr. Berney, jun., nest and 
eggs of a bunting, found at Worms Heath; Mr. E. Lovett, 
wood from submerged forest, Hastings, Sepia officinalis, fossils 
from Wealden formations, ova of Xantho Florida; Mr. H. R. 
Owen, fibre of asbestos; Mr. A. Warner, platino cyanide of 
magnesium (opaque) ; and sections stained two colours; Mr. 
P. Crowley, flowers of Aristolochia ornithocephala. 
EXCURSION WITH THE MEMBERS OF THE GEOLOGISTS’ 
ASSOCIATION, SATURDAY, JUNE IgTH, 1880. 
A considerable number of the members of the Club accepted 
the invitation of the Geologists’ Association to join this excur- 
sion, which was under the direction of J. Logan Lobley, Esq., 
F.G.S. The party started from the East Croydon station, 
and passing through the station yard, proceeded to the extensive 
gravel-pits in the Fairfield. The fine sections of drift gravel, 
with its overlying bed of brick earth which are here exposed, 
were inspected, and the chief features of interest were pointed 
out and described by Mr. Lobley and John Flower, Esgq., M.A., 
F.Z.S. Attention was particularly called to the presence in this 
gravel of a considerable number of rounded pebbles, which must 
have been derived from the Oldhaven beds, and to occasional 
pieces of very hard sandstone, containing a large quantity of iron, 
which were mixed with the flints, and which could only have been 
brought there from the Weald. It was also explained by Mr. 
Flower that this gravel, which was part of a bed of considerable 
extent, upon which the town of Croydon was almost entirely 
built, was probably brought down and deposited by an ancient 
stream, which flowed out of the Weald, and through the valley 
which runs from Merstham to Croydon. The structure of this 
valley, between the Fairfield and Duppas Hiil, was explained, 
and the process by which, in all probability, this bed of gravel 
