152 PROCEEDINGS OF THE SOCIETY. 



Mr. G. E. Davis : 



Crystals of glass, and photograplis of the same witli ^-incli 

 objective. 

 Mr. L. Dreyfus : 



Closterium and Micrasterias containing AmoehcB. 

 Mr. C. G. Dunning: 



Diatoms — Bhipidophora nubecula on Laomedia geniculata. 

 New form of portable Microscope. 

 Mr. F. Enock : 



Eyes of spider, Salticus tardigradus, and winged parasite of swallow, 

 Stenopteryx hirundinis. 

 Mr. F. Fitch : 



Snout-fly, Bhingia roslrata. 

 Mr. C.J. Fox: 



A diffraction effect. 

 Mr. A. de S. Guimaraens : 



Fossil wood with algae, from Thanet. 

 Mr. H. Hailes : 



Foraminifera — Calcarina hispida. 

 Messrs. J. and W. How : 



Sanidine trachyte, ejected block from Vesuvius, and sections of 

 chalk, &c. 

 Mr. W. Joshua : 



Chantransia investiens, parasitic on Batrachospermum moniliforme, 

 and some other species of algse supposed to be new. 

 Mr. W. S. Kent : 



Collared Monads (Choano-Flagellata, S. K.), living and preserved. 

 Genera Monosiga, Codosiga, and Salpingceca ; also those of the 

 calcareous sponge, Leucosolenia coriacea. 

 Mr. A. D. Michael : 



Plumularia echinulata, with extended tentacles. 

 Mr. E. M. Nelson : 



Amphipleura pellucida. Slide No. 84. Diatom series of Messrs. 

 P. T. Cleve and I. D. MoUer. Collected by 0. Nordstedt at 

 Grimstorp, Sweden. With Powell and Lealand's water-immer- 

 sion y^^ objective and a magnification of 1700 diameters, illumi- 

 nated by the vertical illuminator. 

 (No. of striae to the inch transverse, 96,000 ; No. counted, 96. 

 „ » „ longitudinal, 80,000 ; „ „ 6). 



Mr. G. Nicholson : 



Section of petiole of Victoria regia. 

 Mr. T. Norman : 



Section of palate of eagle ray. 

 Section of tooth from saw of saw-fish. 

 Section of sunstone from Norway. 

 Messrs. Powell and Lealand : 



Amphipleura pellucida in balsam, with -^^ oil-immersion objective 

 and oil-immersion truncated condenser. 

 Mr. B. W. Priest : 



Siliceous casts of sponge, Colon pandina. 



