75 



Mr. W. Burton exhibited the following : — 



Melicerta ringens, the beautiful little tube-building rotifer. 

 These were from a large colony developed in his own tanks 

 at Hollo way. 



Derd, an Annelid or aquatic worm with respiratory organs 

 in the tail. These are rarely observed, as the head is 

 generally embedded in debris at the bottom of ponds or in 

 decaying weeds, and the finger-like organs in tail only partly 

 exposed ; from Hayes Common. 



Daphnia reticulata, water-flea, a very pretty little Crus- 

 tacean. 



Tadpole of newt ( Triton cristatus), showing circulation in 

 the branchiae or gills. 



Polycystina, forms of fossil siliceous skeletons of Radio- 

 larian Rhizopods, obtained from Barbadoes earth. 



Mr. H.G. Coombes exhibited transverse section of Clematis 

 stem and various kinds of seeds. 



The Society was also indebted to the following gentlemen 

 who kindly brought microscopes and slides for the evening : 

 Messrs. J. W. Hardy, H. Cooper, T. W. Brown, Mrs. T. W. 

 Brown, 'Messrs. W. Turner and C. West. 



Minerals, Fossils, &c. 



Mr. Chas. Oldham exhibited a large number of very fine 

 polished Madrepores, mostly collected by himself from the 

 shores of Devonshire, the pinpoint, sponge, starred, con- 

 glomerate, and moss varieties being very noticeable. He 

 also showed a considerable number of fossil Echinus and 

 allied genera from different geological formations. 



Mr. Samuel Henson exhibited a series of rough and carved 

 opals, showing the various stages of preparation, and models 

 of the large historical diamonds. 



Messrs. Cook & Sons exhibited, besides apparatus, several 

 cases of birds, fish, and insects, which aided much to the 

 embellishment of the room. 



Diagrams and Drawings. 



Mr. Stanley Edwards, F.L.S., kindly lent a series of 

 about twenty large diagrams showing the life history of 

 typical species of the various sections of the Insecta, and of 

 the Crustacea. 



Mr. Welch, of Belfast, exhibited a series of photographs 

 of scenes characteristic of the Geology of Ireland. 



