lx 
JOURNAL OF PROCEEDINGS. 
Mr. Bainbridge exhibited bundles of apple twigs, from Lam- 
beth, entirely defoliated by the larvae of Yponomeuta padella, 
which entirely cover the leaves with their webs, which are so 
strong, that the young leaves cannot burst through them, but are 
devoured by the larvae. Likewise a specimen of Polia nebulosa 
(one of the Nocluidce), from the left eye of which a fungus-like 
excrescence had been produced, of a slender filiform appearance 
at the base, but bifid and clavate at the tip ; it was about the 
length of the head. The moth had been taken alive with this ex- 
crescence attached to it, by Mr. Shipman. 
Mr. Yarrell exhibited the branch of a sycamore tree, forwarded 
by Mr. Barnard, the interior of which had been perforated by the 
larva of Zeuzera ZEsculi, which was at that time in the pupa state, 
the head being directed downwards, and reposing on a layer of 
fine saw-dust agglutinated together. 
Mr. Bowerbank exhibited portions of a cargo of twelve tons of 
cork, which had been damaged or entirely rendered useless by the 
attacks of Dermestes vulpinus in its different states. With the 
cork a great quantity of foreign bones, horns, and hoofs had 
also been imported from Brazil, the ship having also called in 
Portugal on her way home. The insects had quitted the bones, 
their ordinary food, and had attacked the cork, boring into it in 
every direction, as well as into the base of the mast itself, so that 
great fears were entertained for its safety. Birch and other soft 
woods had especially been liable to the attacks of the insects, 
which were found in all states in the burrows which they formed. 
The same insects had also commenced operations in the neigh- 
bourhood of Whitechapel and Saffron Hill, having been imported 
in foreign bones, and where they bored into and injured the 
wooden posts. He suggested for their destruction in the vessel 
the use of essential oil of almonds, and it had been advised that 
the bottom of the posts should be saturated with coal-tar oil, 
which would probably render the wood unpalatable. 
Mr. Waterhouse recommended the application of corrosive sub- 
limate, or the employment of Kyan’s patent liquid. 
Mr. Stephens stated, that some years ago the same insect had 
been exceedingly obnoxious in consequence of its prevalence, not 
only destroying whole cargoes of skins and bones, but rendering 
the vessels not seaworthy. He had been present at the British 
Museum when a merchant offered a reward of ,£10,000 to Dr. 
Leach for an effectual remedy against these insects. 
Mr. Westwood exhibited a living specimen of the ant-lion 
