Journal of Proceedings. 
lxxxiii 
John Lubbock does not appear to mention these structures in Geum and 
Cynoglossum in his paper on “ Fruits and Seeds.” 
The Secretary exhibited, on behalf of Mr. Eeginald Christy, a speci¬ 
men of the “ Drinker Moth” (Odonestis potatoria), bred from a pupa 
found in Wicken Fen, Cambridgeshire, in June last. The specimen was 
a female, but the colouring approached in many respects that of the 
male moth. 
Mr. Meldola remarked that Mr. Jenner Weir exhibited at the Ento¬ 
mological Society in 1880 a male 0. potatoria , having two-thirds of the 
upper wings of the yellow colour of the female, and also a female moth 
tinged with the usual red-brown colour of the male. Speaking from 
memory, he thought the latter specimen was similar to Mr. Christy’s. 
Mr. T. Vincent Holmes, F.G-.S., &c., read a paper “ On Heneholes.” 
[Trans., vol. iii., p. 48.] The paper was illustrated by geological maps 
of the localities mentioned, together with enlarged coloured plans of the 
deep denehole in Eltham Park, the pits visited by the Club in Hang¬ 
man’s Wood, ideal sections of the subsidences on Blackheath, and a 
drawing of the presumed “ evolution ” of such a hole as the six- 
chambered one in Hangman’s Wood into one of the spacious pillared 
caverns found in some of the Stankey Wood “ denes.” 
Mr. Henry Walker said that a more delightful paper, showing on 
evolutionary principles the construction of Deneholes, one could not have 
wished to hear. The formation of the Stankey Wood Deneholes from 
the double trefoil forms was a new idea, but he was sure that Mr. Holmes 
was right, and that the Essex Deneholes were the older. The paper was 
perhaps the first important step towards a genealogy of Deneholes. If 
anybody stood on the platform of the British Association and announced 
that, within twenty or twenty-five miles of London Bridge, there were at 
least a thousand shafts from thirty to eighty feet deep, many of them 
chambered at the bottom, giving every indication of primitive pit- 
villages, there would be a great sensation throughout England. At pre¬ 
sent the Essex Field Club had not that platform, and Mr. Holmes had 
shown that some of our most eminent scientific men were in arrears of 
interest about these ancient villages. He supposed they had been put 
down in guide-books and elsewhere as simply the haunts of pirates and 
smugglers, and pooh-poohed in that way. The discovery of a Stone Age 
had given quite a new interest to these mysterious excavations, and 
(referring to some remarks in the paper) Mr. Walker thought that if 
Buckland had known of a Stone Age, he would have seen that there were 
some chronological data to go upon. Now that the fact of a Stone Age 
was so well known, it was wonderful that there was not a more general 
recognition of the great interest of these excavations ; he hoped that the 
Essex Field Club would have the honour of creating a little scientific 
curiosity as to their origin. It would have occurred, perhaps, to most of 
them to ask why Deneholes were so common in the south of England 
and not in the north. The explanation he conceived to be that we had 
