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PROCEEDINGS. 



April 9th, 1886. — Conversational Meeting. 



The following objects were exhibited : — 



Larva of caddis fly ... ... Mr, F. W. Andrew. 



Antenna of a moth, Fyycera lucephala, nat. ^ 



form and 'colour ... ) Mr. F. Enock. 



Pycnogonidece, from Naples ... Mr. F. Fitch. 



Cast skin of pupa and image of Tanypus, sp. Mr. J. D. Hardy. 



AgJaopihenia pluma ... ... ... ... Mr. A. D. Michael. 



Section of " Cementstein " Mr. H. Morland. 



Tubidipora, from Australia ... ... ... Mr. B. W. Priest. 



UyOrocampo ... ... ... ... ... Mr. C. Rousselet. 



Section, Nummulitic Limestone from Eisen-7 



i u xj „„..„ J N T - G. Smith, 



bach, Hungary ... ... ' 



Diatoms from Simbirsk deposit Mr. G. Sturt. 



Pollen of Mallow Mr. W. Watson. 



Attendance — Members, 5U ; Visitors, 4. 



May 14th, 1886, — Conversational Meeting. 



An exhibition was given, in the Mathematical Theatre, by Messrs F. H. 

 Evaus and George Smith, with the oxy-hydrogen lantern, of a large selection 

 of microscopic objects, photographed direct from nature, and prepared as 

 lantern slides by the Woodbury type process. The series embraced a wide 

 variety of subjects for the purpose of showing the suitability of the process 

 to this kind of illustration. 



The following address by Mr. Evans was read : — I had the pleasure last 

 Wednesday evening, of exhibiting before the Royai Microscopical Society the 

 photo-micrographical lantern slides presently to be shown to you ; and 

 I was much gratified at finding the spontaneously expressed opinion of 

 those who spoke after the exhibition, was, that the chief merit of the slides 

 consisted in their educational value, from their great truthfulness to nature, 

 both in detail and general aspect. 



The point I want you to notice especially this evening is this : drawings, 

 however exact as to detail generally, fail in giving an air of naturalness to 

 the representation, and suffer .from a lack of depth, roundness, relief, I 

 might almost say perspective, and are consequently flat in result. One 



