PROCEEDINGS OF THE SOCIETY. 
695 
Mr. J. J. Vezey : — Mucous membrane of Caecum (human) injected. 
Messrs. Watson & Sons : — New pattern Binocular Microscope. 
Group of Diatomaceee. 
Section of Eye of Ely ( Tabanus). 
Bacillus anthracis in section of malignant pustule from the cheek 
of a person infected by a cow suffering from Anthrax. 
Leaf of New Zealand Hemp. 
(Esophagus of Dog. 
Type-slide of Holothurida. 
The second Conversazione of the Session was held at 20, Hanover 
Square, on Thursday, the 30th April, 1891. 
The following objects, &c., were exhibited : — 
Mr. J. Badcock : — Freshwater Polyzoa ( Lophopus crystallinus ). 
Mr. C. Baker : — Navicula rhomboides in quinidine under Zeiss Apochro- 
matic 1/6 N.A. ’95. 
N. Lyra under Beichert’s Apochromatic 1/3 N.A. *50. 
Mr. W. A. Bevington : — Head of Jumping Spider. 
Mr. F. Enock : — Eggs of Psocus fasciatus showing parasitic fly ( Alaptus 
minimus) in situ. 
Eggs of P. fasciatus on leaf. 
Mr. J. G. Grenfell : — A new “ Diatom ” with long branching pseudopodia 
or filaments, from the Botanical Gardens, Begent’s Park. 
A new Freshwater Organism. 
The Symbiosis of Micrococcus with a new form of the Flagellata. 
Mr. J. D. Hardy : — An attempt to express a frustule of Heliopelta in 
modelling clay, 9 in. diam. x 1000. 
Mr. A. Howard: — Epithelioma of Human Tongue showing Trichina 
Mr. W. Johnson : — Bacillus anthracis (cultivation). 
Spleen of Guinea-pig, showing B. anthracis. 
Lung of Guinea-pig showing B. anthracis. 
B. tuberculosis (cultivation). 
Streptococci Pyogenes (cultivation). 
Lung of Horse showing nodule of B. tuberculosis. Prepared by 
Mr. T. N. Davis, M.B.C.Y.S. 
Foot and stage of Microscope by Yarley (date about 1812). 
Mr. B. Macer : — Cristatella mucedo. 
Stephanoceros. 
Mr. C. Machins : — Asplanchna Brightwellii. 
Mr. J. Mayall, Jr. : — John Marshall’s Microscope ( vide Harris’s Lexicon 
Technicum, 1704). 
Messrs. E. M. Nelson and C. L. Curties : — Projection Microscope exhi- 
biting micro, slides with 70 mm. and A A objectives. 
Mr. J. M. Offord : — Actinocyclus Barhlii. 
Messrs. Powell and Lealand : — Bhomboides in Balsam and Coscinodiscus 
aster omphalus, with an Apochromatic Oil-immersion 1/10 N.A. 
1*50 and new dry Apochromatic Condenser. 
