PEOCEEDINGS OF THE SOCIETY. 



621 



The Society's next meeting would be on November 15tli, when 

 Dr. Singer would make a communication. 



The following Specimens were exhibited : — 

 By Dr. Pixell Goodrich and Miss Moseley : — 



Preparation of Eiitamoeba gingivalis Gros., showing pseudopodia, 



nuclei and inclusions. (Stained iron-hgematoxylin.) 

 Numerous E. gingivalis burrowing between the threads of 



leptothrix at the edge of a clump of tartar. (Iron- 



hffimatoxylin.) 

 Sections of cat's jaws with advanced pyorrhoea. (Various stains.) 

 Leptothrix branches of the " bottle-brush " variety casting off 



fusiform bacilli. (Iron-hematoxylin.) 

 A large branch from a clump of leptothrix. (Stained Stephens* 



ink.) 



Exhibition of Volvocaceae : — 



Mr. E. E. Banham 

 Mr. James Burton 

 Mr. G. H. Gabb . 



Mr. J. Grundy . 

 Mr. W. Lauwers 



Mr. F. J. W. Plaskitt 

 Mr. D. J. Scourfield . 



Mr. C. D. Soar . 

 Mr. Geo. Tilling . 

 Mr. Joseph Wilson 



Sent by Prof. 



Chlamydomonas sp. (?) 



Eiidorina elegans. 



Fleodorina illinoisensis . 

 G. S. West. 



Pandorina morum. 



Flatydorina caudata and PUodorina caii- 

 fornica. From Illinois ; sent by Prof. 

 G. S. West. 



Volvox glohator. 



V. globator under yV oil-immersion lens, 

 showing cells with protoplasmic con- 

 nexions. 



V. glohator. 



V. aureus. 



V. globator. 



