cxl Proceedings. 
eighteen members and friends left East Croydon at 3.30 p.m. 
for Woldingham. We walked through Marden Park, and thence 
by the Roman road, through the wood, to Rook’s Nest, where we 
enjoyed the kind hospitality of the Hon. P. C. and Mrs. Glyn; - 
and we were afterwards shown some of the curiosities contained 
in the house, notably a large bedstead made entirely of ivory 
and silver, taken from one of the Maharajas of India, as also a 
cabinet containing a fine collection of stick and leaf insects 
belonging to the family Phasmide. The party was then con- 
ducted by Mrs. Glyn through the extensive grounds to the 
American garden, and a very delightful excursion was brought 
to a close by a walk to Oxted, whence train was taken to Croydon 
at 7.45 p.m. A Thecla rubi was captured by Mr. Holmes, and 
many varieties of Orchis were observed in the woods.” 
Instead of the usual indoor meeting, a visit was paid on 
May 29th to South Norwood Sewage Farm. After reading a 
short paper on the theory of sewage purification as carried out 
on the farm (‘ Transactions,’ Article 187), wherein I gave some 
results of bacteriological experiments which I had made with 
the sewage and with the effluent respectively, I conducted the 
party—a very small one—over the farm, beginning with the 
settling tanks and ending with the effluent; and with the help 
of Mr. Walker, Borough Engineer, I explained the practical 
workings. At the present time the whole of the purification of 
sewage at this farm is effected by passing the fluid, after screening, 
by gravitation through plots of growing rye grass. The subsoil 
at a very little distance from the surface being dense clay, little 
or no downward filtration can occur. Yet the effluent is on the 
whole a satisfactory one, tested both chemically and bacterio- 
logically. My own observations of the latter kind go to show that 
at least ninety per cent. of the organisms are removed. It is 
proposed shortly to try experimentally a biological purification 
on this farm as carried out at Sutton. 
We now come to the usual pause in general meetings, and 
find that until September 21st our activities were confined to 
excursions combining recreation with field work. 
On Whit-Monday, June 7th, Dr. Franklin Parsons conducted 
the members to West Hoathly and Balcombe. The following is 
the report of the excursion contributed to the local press by 
Dr. Parsons :— 
«© A well attended excursion of this Club took place on Whit- 
Monday, through the beautiful Weald of Sussex, from West 
Hoathly to Balcombe. Arriving at West Hoathly Station at 
11 o’clock, a steep ascent brought the party to the picturesque 
