PROCEEDINGS OF THE SOCIETY. 475 



CoNVBKSAZIONE. 



The following is a list of the objects, &c., exhibited at the Con- 

 versazione on the 2nd of May, 1883 : — 



Mr. Baker : 



Slides illustrating the Embryology of Marine Crustacea, Fishes, 

 &c. By Sinel & Co., of Jersey. 

 Messrs. E. and J. Beck : 



Spirillum, showing jointed structure ; striated muscle ; and mem- 

 brane from eye of cat. 

 Mr. Cocks : 



Ova of perch, and Conochilus volvox. 

 Mr. Curties : 



Diatoms from Hong Kong. 

 Mr. F. Enock : 



Apis mellifica, showing pollen-basket. 

 Mr. James Fleming : 



Volvox glohator, showing the hatching of Notommata parasita in the 

 interior. 

 Mr. A. de Souza Guimaraens : 



Fungus spores and mycelium from Halifax coal strata. 

 Mr. H. F. Hailes : 



Foraminifera from Teneriffe. 

 Mr. J. E. Ingpen : 



Steinheil's Micrometer Eye-pieces (solid and achromatic), 1^, 1, 

 and i in. 

 Mr. W. Joshua : 



Stigonema mamillosum (Ag.) from a bank of Lake Ogwen, near 

 Capel Curig, N. Wales ; and Bostrychia sertularia (Mont.) from 

 Bermuda, 

 Dr. Maddox : 



AerOscope and Aspirator combined for collecting floating matters 

 in the air. 

 Mr. A. D. Michael : 



Eeproductive organs of Damoeus geniculatus. 

 Dr. Millar : 



Tetrarhynx from stomach of cod. 

 Mr. F. W.Millet: 



A selection of Foraminifera. 

 Mr. E. M. Nelson : 



Podura. — Polarized light. Zeiss water-immersion l-25fch N.A. 



1 • 1. Magnification 2500 diameters. 

 Pleurosigma Fasciola. — Powell and Lealand's Oil-immersion 

 l-25th N.A. 1 • 38. Direct light achromatic condenser. Mag- 

 nification 2500 diameters. 

 New Model of Stand. By Messrs. Swift and Son. 

 Messrs. Powell and Lealand : 



Podura, Amphipleura pellueida, &c., with l-25th Oil-immersion 

 N.A. 1 • 38 and Achromatic Condenser. 



