35 



in the timber, where the animal was found, and from which it must have been 

 trying to escape, when the pipe stopped its progress. The hole in the pipe had 

 very much the appearance of a screw-hole in a common iron hinge, with the 

 dishing or countersinking formed to receive the head of the screw. This counter- 

 sinking was not uniform, being on one side oblique, and on the other nearly vertical 

 to the surface of the pipe ; the difference,. was evidently produced by the obliquity of 

 the line of progress, and by the fact of the animal's working in something like a he- 

 misphere, of which that line was the axis. I can give no indication of the time 

 occupied except this ; that the pipe was subjected to a high-service pressure seventy- 

 two hours, before the water burst through the aperture in question. The creature 

 when found was not quite dead, but veiy inanimate, having been exposed to a violent 

 jet of water for above half-an-hour. I am, dear Sir, yours truly, Alfred Ainger.'' 



" What surprises me is, that these round holes in the timber are not more common. 

 The coincidence of finding a leaden pipe at the surface of the timber may easily be 

 very rare ; but I never before saw such a hole formed in wood, and I suppose the 

 animal is not uncommon ?'' 



Mr. White, on the part of Mrs. Hamilton, exhibited a small but most interesting 

 collection of insects of India, including the beetle referred to in her letter, read 

 July 1, and a specimen of the butterfly Danais Daos. 



He also exhibited a drawing by Mrs. Hamilton, of this butterfly, its larva and 

 pupa, which, besides being highly flattering to that lady as an evidence of her skill in 

 observing and delineating, was especially interesting as determining the relations of 

 the species, and sbowing that Mr. E. Doubleday, with his usual accuracy, was correct 

 in considering it to belong to the genus Danais rather than Hestia, with which it had 

 been associated. 



October 7, 1850, 

 G. R. Water ho use, Esq., President, in the chair. 



The following donations were announced, and thanks ordered to be given to the 

 donors thereof: The 'Zoologist,' for October ; presented by the Editor. ' Entomo- 

 logische Zeitung,' for August and September ; presented by the Entomogical Society 

 of Stettin. 'Annales de la Societe Entomologique de France,' 1848, 'Troisieme et 

 Quatrieme Trimestres,' and 1849, complete. ' Insecta Saundersiana, or Characters of 

 Undescribed Insects in the Collection of W. W. Saunders, Esq. ; Diptera, Part I., 

 by Francis Walker, Esq.' ; presented by W. W. Saunders, Esq. A small collection of 

 Insects from Hong Kong ; presented by J. C. Bowring, Esq., Corresponding M. E. S. 



George Guyon, Esq., of Richmond and Ventnor, and Mr. Charles Potter, 6, Cole- 

 man Street, were elected subscribers. 



Mr. S. Stevens exhibited some beautiful Lepidoptera, received from Mr. Bates, 

 collected by him at Ega, Upper Amazons, including a new species of Papilio, Hectera 

 Andromeda, a new species of Castnia, and a new Callithea ; also some Homoptera 

 and Diptera of curious form, and some conspicuous Staphylinids. 



Mr. Shepherd exhibited three specimens of Aphomia anella, a species new to 

 Britain, taken near Dover. 



