proceedings: march 14, 1906. 317 



Paper Read. 



"The Prevention of Corrosion in Shells," Ijy L. St. G. Byne. 



Exhibits. 



By Mr. J. Wilfrid Jackson : Physa ancillaria Say with well defined white bars 

 indicating growth-stages, from Frankfort, Maine, U.S.A. 



By the Rev. Canon J. W. Horsley : Helix pisana, H. splendida, and Tutora 

 ferriiginea from Majorca ; H. hortensis var. vionozona from Swanley, North Kent. 



A large number of white forms of British Non-Marine Mollusca were shewn as 

 a special exhibit by Messrs. Baldwin, Jackson, Standen, Moore, and Whitehead, 

 and a fine series from the Manchester Museum Collections was also exhibited. 



350th Meetings, March 14th, 1906. 



Mr. Edward Collier (vice-president) in the chair. 



Donations to the Library announced and thanks voted : 



"On the Mollusca of East Greenland, I. Lamellibranchiata," by Adolf .Sverin 

 Jensen {from the author'), and the usual periodicals received in exchange. 



Donation to the Cabinet announced and thanks voted : 



Specimens of Littorina rudis var. higosa from the Orkney Islands, .rom Mr. 

 J. C. Dacie. 



Candidates Proposed for Membership. 



J. W. Boult, 50, Waslington Street, Newland, Hull. 



V. B. Crowther-Beynon, M.A., F.S.A., The Grange, Edith Weston, Stamford. 



Harry Fogerty, 21, Henry Street, Limerick. 



Robert Godfrey, M.A. , 46, Cumberland Street, Edinburgh. 



Alexander Reynell, 152, Selhurst Road, South Norwood, London, S.E. 



C. J. Sharp, M.R.C. S., 2, Wellington Avenue, Liverpool. 



Commander E. R. Shopland, Weeting, Sheringham. Norfolk. 



Edward Step, F. L.S. , Oakwood House, Ashstead, Surrey. 



Lt.-Col. W. H. Turton, D.S.O., R.E., Harley House, Clifton Down, Bristol. 



Papers Read. 



"Jaminia triplicata Studer, a new British Terrestrial Mollusc," by Dr. G. W, 

 Chaster. 



"A Single Haul of Land Mollusca," by F. H. Sikes. 



Exhibits. 



By Dr. G. W. Chaster: Jaminia triplicata Studer from Brandon, Suffolk, and 

 Batzen, Tyrol; andy. bigranata Rossm. from Wiesbaden, to illustrate his paper. 



By Mr. C. P. Richards (on behalf of Miss A. C. S. Foster) : A remarkable 

 specimen of Cyprcsa arabica, adult, with greatly produced spire; the mouth reduced 

 to two-thirds its normal length by the wedging in of a stone or piece of shell ai the 

 anterior end; this the animal has coated with a thick layer of enamel, giving rise to 

 a large livid coloured callosit}-. 



By Mr. J. C. Dacie : A series of very large Littorina rudis var. jiigosa Mont, 

 collected by him last summer in the Orkneys, on a promontory (Plutonic) called 

 "Bigging Brough," facing the Atlantic; the rock weathers into grooves about an 

 inch in depth which are filled with shells of this variety only, all found elsewhere on 

 the shore being of the normal form. The variety appears to possess a wonderful 

 fitness for resisting the powerful spray which more often than not washes violently 

 over the rocky platform. 



By Mr. C. H. Moore: 'i&c'\^% oi SphiErium pallidum, Valvata piscinalis, PalU' 

 destrina jenkinsi and var. carinata from a pond at Droylesden, Lanes, 



