PROCEEDINGS OF THE SOCIETT. 137 



The following Instruments, Objects, &c., were exhibited : — 



Mr. Crisp :— Parkes's " Drawing-room " Microscope with magnetic 

 stage. 



Mr. Deby:— New method of moving the correction-collar of 

 objectives (see p. 107). 



Mr. Guimaraens : — Echinorhyuchus of Lota vulgaris. 



Mr, Michael : — CepJieus ocellatus n. sp. Nymph — showing the eye- 

 like appearance of the stigmata and stigmatic organs. Damceus 

 monilipes n. sp. — showing the tibiae of the first pair of legs. Leiosoma 

 palmacindum — internymphal ecdysis showing arrangement of the 

 palmate hairs on new skin forming within present one. Notasjns 

 licnopJiorus n. sp. — showing the stigmatic organs. 



Mr. Stephenson : — Scales of MacMlis maritimus and Tomocertus 

 (Podura) plumhea, mounted in phosphorus under J^"^^*^^ objective 

 and binocular (see p. 134). 



Mr. T. C. White : — New form of Growing or Circulation slide 

 (see p. 19). 



New Fellows. — The following were elected Ordinary Fellows : — 

 Messrs. William Blackbui^n, Walter H. Coffin, F.L.S., F.C.S., the 

 Hon. William Nassau Jocelyn, and Theodore Wright. 



Conversazione. 



The first Conversazione of the Session was held on the 7th 

 December last in the Libraries of King's College. 



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

 Mr. C. Baker : 



Stephenson's Erecting Binocular Microscope for Laboratory use. 



Homogeneous-immersion and Glycerine-immersion Objectives by 

 Gundlach and Zeiss. 



Abbe's Apertometer and Immersion Hluminator. 



Dissecting Microscope by Zeiss. 

 Dr. Beale: 



Muscular fibres of the bladder of Hyla. 



Nerve- fibres of ditto. 



Capillaries and nerve-fibres of the palate of the common frog. 

 Messrs. E. and J. Beck : 



Pleurosigma angulatim with their new ■^- object-glass. 

 Mr. W. A. Bevington : 



Isthnia nervosa in situ. 

 Mr. W. G. Cocks : 



Ophrijdium and a remarkably large form of Emstiilis 

 Mr. J. E. Creese : ^ '' 



Eadiolarian ooze from the 'Challenger' Expedition (2600 

 fathoms). 

 Mr. Crisp : 



Colouring matter from willow-tree Aphides (Lachnus viminalis), 

 polarized, showing the characteristics of Saliciue. Prepared 

 by Mr. C. J. Muller in illustration of his paper (ante, p. 39). 



