536 PEOCEEDINGS OF THE SOCIETY. 



Dr. Hebb said that the Koyal Photographic Society would be hold- 

 ing their Annual Exhibition in London in October next, and had written 

 to ask if any Fellows of the Society would be willing to exhibit in 

 Section V., which included the scientific applications of photography. If 

 anyone were desirous of exhibiting he was requested to communicate 

 with Mr. Vezey or with the Secretary, who would be very pleased to 

 give aid and information. 



The President announced that the rooms of the Society would be 

 closed from 17th August to 17th September for the summer vacation — 

 and that the next Ordinary Meeting of the Society would be held on 

 17th October. 



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



Mr. Chas. Baker : — A new Achromatic Sub-stage Condenser. 

 Mr. G. H. J. Eogers : — A Modification of the Eousselet Compressor. 

 Mr. E. B. Stringer : — A new Projection Eye-piece, and an improved 

 Polarising Eye-piece, in illustration of his paper. 



New Fellow. — The following was elected an Ordinary Fellow : — 



Miss Marion I. Newbigin. 



