PROCEEDINGS OF THE SOCIETY. 859 



Mr. G. Smith : 



(1) Rhyolite of Pre-Cambrian age, showing perlitic and spherulitic 

 structure, Wrockwardine, Shropshire. (2) Pitchstonc, Ponza Island, 

 showing glass in a condition of strain. (Polarized light.) 

 Mr. J. H. Steward : 

 Hydra vulgaris. 

 Mr. C. Tyler: 

 Meyerina. 

 Mr. A. Topping : 



(1) Section of Hoof of Horse (double stained). (2) Palate of Octopus 

 (double stained). (3) Earth Parasite, Trombidium (South Africa). 

 Mr. J. J. Vezey : 



Ciliary Processes of the Eye of an Ox (injected). 

 Mr. H. J. Waddington : 



(1) Alloxanate of Ammonia (polarized). (2) Parabanic Acid (po- 

 larized). 

 Messrs. Watson and Sons : 



(1) Type Slides of British and Foreign Foraminifera. (2) Jaw of 

 Mole, long. sect, through teeth. (3) Type Slides of Spines of 

 Echimis, Holothuria, and Synapta. 

 Mr. T. Charters White : 



Album of Photomicrographs. 



The second Conversazione of the Session was held on the 27th April, 

 1887. 



The following objects, &c., were exhibited : — 

 Mr. Badcock: 



Lophopus cristallinus, Floscularia, &c., from Victoria Park. 

 Mr. C.Baker: 



Apochromatic Objectives by Zeiss. Oil-immersion Objectives by 

 various makers, especially suited for bacteriological work. New 

 Photo-micrographic apparatus complete, with Nelson Model Micro- 

 scope and Lamp, showing image of Amphipleura pellucida ( x 3000) 

 projected on the focusing glass. 

 Eev. G. Bailey : 



Foraminifer ? from interior of Chalk Flint. 

 Mr. Bolton : 



Tilmadoche nutans. Elver or young Eel. Stentor polymorphus. 

 Mr. Crisp : 



Gold-plated Diatoms. 

 Mr. Enock : 



Various Insects and parts of same, showing all organs in natural form 

 and colour. 

 Mr. F. Fitch : 



Mouth, Upper Lip, Gizzard, Ventriculus, and Pancreas of Dytiscus 

 marginalis. 

 Mr. Hardy : 



Marine Polyzoa, Acineta, and Insects' Eggs. 

 Mr. Ingpen : 



Dendrospongia and Diatoms mounted in Bromide of Antimony. 



