12 



Asterina gibbosa, T. Oliver. 



Copepoda, various Slides from the Cabinet W. H. Read. 



Cyclops (various stages) ....Joseph Wall. 



Hair follicles from Human Scalp, transverse and 



long, sections F. C. Larkin, M.R.C.S. 



Mussel (fresh water), showing Ciliary action W. Narramore. 



Spiracle of Larva of Dytiscus J. M. Williams. 



Sugar Cane, long, section R. Nicholson. 



Tongue of Cricket Tapley B.\con. 



April 6th. — The paper of the evening, entitled ' ' Types of the Anoplura compared 

 with Menopon Cucullare," was read by Mr. James Hornbll. The debatable 

 question of their position in the insect scale was first noticed. The view 

 that they are not degenerate Hcmiptera, but rather a less modified and 

 distinct branch of a common stock was favoured. The features of the great 

 types were then described and compared with Menopon cucullare — a parasite 

 found upon the common starling, and not descril)ed by Jlr. Denny in his 

 great monography of these insects. The importance of an accurate know- 

 ledge of the pliysiological conditions favouring undue increase of these 

 too often undesirable guests, as well as the present narrowness of our 

 information, were dwelt upon. Diagrams and numerous microscopical slides 

 illustrative of the subject were exhibited. 



At the Conversazione the following subjects were illustrated : — 



'Docophorus leontodon W. Narramore. 



Hsematopinus eui-ysternus G. Watson Gray. 



Menopon cucullare (Parasitic upon the common 



Starling) J- Hornell. 



Menopon cucullare, showing adhesive discon thefoot.The President. 



Nirmus argulus W. Oelrichs. 



Parasite of Horse AV. H. Read. 



Phthirius inguinalis T. W. Bruce. 



Pteropus vespertilionis (Parasitic upon the Bat) ...A. Johnson. 



LTrichodectes scalaris (Parasitic upon the Cow) J. M. Williams. 



Dodder on Heath T. C. Ryley. 



Retina (section of ) F. C. Larkin, M.R.C.S. 



Matj4th.—},h: J. T. Norman Thomas called the attention of the Society to a 

 very interesting old microscope he exhibited, and the President made some 

 remarks on a microscope fitted with "Electric Light" apparatus. 

 At the Conversazione the following subjects were illustrated: — 



Adapter for Micro-Photographic work 



Microscope fitted with ]\Iawson and Swan's arrange- ^The President. 

 ment for using Electric Light 



