( 184 ) 

 PEOCEEDINGS OF THE SOCIETY. 



Meeting of 9th December, 1885, at King's College, Strand, W.C, 

 Mr, a. D. Michael, F.L.S., Vice-President, in the Chaie. 



The Minutes of the meeting of 11th Novemher last were read and 

 confirmed, and were signed by the Chairman. 



The List of Donations (exclusive of exchanges and reprints) re- 

 ceived since the last meeting was submitted, and the thanks of the 

 Society given to the donors. 



Curiosities of Animal Life, with the recent discoveries of tlie From 

 Microscope, viii. and 192 pp., 66 figs. (8vo, London, 



1859) Mr. Crisp. 



"Wrisberg, H. A., Observationum de Animalculis Infusoriis 



Satura. 110 pp. and 14 figs. (8vo, Gcettingse, 1765) .. „ 



Whitman, C. O., Methods of Kesearch in Microscopical 

 Anatomy and Embryology, viii. and 255 pp., 37 figs. 



(8vo, Boston, 1885) The Pubh'shers. 



Slides (29) of A. pellucida mounted in various media . . . . Dr. Morris. 



Slides (2) Retina of Pig, and v.s. through cornea of Eye of Ox Mr. A. C. Cole. 



Slide of Eussian Diatoms Dr. Stolter forth. 



Photograph of the late Dr. Carpenter Mr. F. Enoch. 



A letter was read from Dr. P. Herbert Carpenter acknowledging, 

 on behalf of Mrs. Carpenter, the resolution passed at the meeting of 

 the 11th ult. 



Mr. Crisp called attention to some slides presented by Dr. Morris, 

 which were mounted in a highly refractive medium, which by some 

 misconception was imagined to have the effect of increasing the 

 aperture of the objective in proportion to the increase of refractive 

 index, so as to make objectives of low aperture resolve as easily as 

 wide-angled homogeneous lenses. 



Mr. Swift's large photo-micrograph of the tongue of the blow-fly, 

 which had obtained the prize medal at the recent Exhibition of the 

 Photographic Society, was exhibited. 



Mr. J. Mayall, jun., said that this photograph was made on a plan 

 for which he was partly responsible, having suggested it to Mr. Swift 

 as more likely to produce good results than the ordinary method, in 

 which the increase of size was obtained by increasing the distance of 

 the plate from the eye-piece. The plan adopted in this case was to 

 make an enlarged photograph from a small negative obtained by a 

 paraffin lamp ; by this process and by chemically intensifying the 

 enlarged negative, the specimen before the meeting had been pro- 

 duced, and it was one of the best, if not the very best, he had ever 

 seen. Mr. Swift was, of course, entirely responsible for the success 

 with which the process had been carried out. 



