PROCEEDINGS OF THE CONCHOLOGICAL SOCIETY. 363 



A paper by Mr. G. B. Sowerby, F.L.S., F.Z.S., on the ' Marine Shells 

 of South Africa' was read [and is published in the 'Journal of Conchology,' 

 April, 1894, pp. 368—378]. 



A paper by Messrs. G. W. Chaster and W. H. Heathcote on 'Dredging 

 at Oban,' which had been jireviously read before the Manchester Branch, was 

 read [and has been printed in the 'Journal of Conchology,' January, 1894, 

 pp. 289—312]. 



A communi.ation from Dr. R. F. Scharft was also read, in which he 

 indicated a ready method of distinguishing between Umax tnaxiinus and 

 L. marginatiis {arbortini). By touching the front part of the mantle in 

 L. maximus with a pencil or forceps the whole of that part and the sides 

 will be raised up and almost inverted, while if the same be done with 

 Z. marginatus nothing of the kind takes jMace, indicating probably a more 

 extended connection between the mantle and the body. In Liniax flaviis, 

 which is so readily distinguishable from both L. f/iaxz/znts and L marginatus 

 in colour, the mantle is very loose loo, and is likewise raised up when 

 touched, but not to such a degree as in L. niaximns. 



A further communication from Dr. Scharff was read, in which he 

 described a new method of killing mollusca in an extended condition. 

 Having tried various methods of obtaining snails and slugs fully expanded 

 for museum purposes he finds that the acetic acid process is fairly satisfactory 

 if the solution is not too strong. The animals will at first contract pretty 

 strongly and then relax again, when they should be carefully washed in 

 water, then transferred to weak methylated spirit (about 30 per cent.) ?nd 

 afterwards to a 70 per cent, mixture, in which the animals should be 

 preseived. 



Exhibits : 



Mr. William Nelson exhibited, on behalf of Mr. James Madison, of 

 Birmingham, photographs of abnormal specimens of Limnaa peregra. 



22olh Meetixc;, Wednesday, December 6th. 1S93. 

 Held at the Philosophical Hall, Leeds. 

 Mr. John W. Taylor, F. L. S., vice-president, in the chair. 

 Donation to Library announced and thanks voted : The Naturalist 

 for December, 1S93. 



Paper Read : 



A note by INIr. A. T. Daniel, M. A., on ' Hydrobia jenkinsi in an Inland 

 Locality ' was read [and has been printed in the 'Journal of Conchology,' 

 January, 1894, p. 325]. 



Exhibits : 



On behalf of ]\Ir. H. Wallis Kew, F.Z.S., was exhibited an example 

 of Limncca aiiricularia from High Beech, Epping Forest, to show the 

 manner in which it had repaired its shell. A hole having been accidentally 

 made in the middle of the superior aspect of the body whorl of its shell, 

 the mollusc had repaired the damage by making what might be termed a 

 ' dormer ' mouth of the hole, and using it instead of the ordinarj'^ orifice. 



