Ixvi PROCEEDINGS OF THE 



4lh June, 1849. 

 G. R. Waterhouse, Esq., President, in the Chair. 



Donations. 

 The Transactions of the Zoological Society, Vol. 3, part 6 ; 

 and the Proceedings of that Society to December, 1848. By the 

 Zoological Society. 



The following gentlemen were balloted for and elected : — 

 Francis Swanzy, Esq., of Dix Cove, as Corresponding Member; 

 Joseph William Dunning, Esq., as Member ; and 

 W. Michael, Esq., as Subscriber. 



* Exhibitions, Memoirs, &c. 



A letter from Mr. Westwood to the President was read, stating 

 that after an attendance of five days at the Police Court, and four 

 days at the Old Bailey, he had succeeded in recovering the draw- 

 ings and coloured patterns of plates stolen from the Society's 

 rooms, and now restored them to the Society. The thief, he 

 added, had been transported for fourteen years. A unanimous 

 vote of thanks was passed to Mr. Westwood for the trouble he 

 had taken in this matter. 



Mr. Westwood brought for distribution specimens of Ilythia 

 sociella, which he had reared from the pupae. He exhibited a 

 mass of cocoons of this species which had fallen out of a tree, 

 and remarked that these coverings were double, each one having 

 a lining, and that they were open at one end. 



Mr. Westwood also exhibited specimens of Ptinus hololeucus, 

 received from Mr. Hart of Knightsbridge, who found them in 

 open jars attached to his galvanic battery, in which a strong solu- 

 tion of silica was operated on by a galvanic current for a lengthened 

 period, and Mr. Hart thought that their presence was due to 

 galvanic agency. Several members stated that they had seen 

 these beetles in houses in London, and there did not appear to be 

 any ground for Mr. Hart's opinion. Mr. Westwood stated that 

 Acarus Crossei, whose appearance had been believed to be due to 

 galvanism, had been produced without galvanic power, as recorded 

 in the Gardener's Chronicle long since. 



Mr. Weir exhibited a collection of Lepidoptera, taken within 

 the previous month near Tunbridge Wells, including some rare 

 Tinecs ; also a LobopJiora polycommata, found near Lewes on the 

 4th of May. 



