172 



June 19, 1856. 

 The LORD WROTTESLEY, President, in the Chair. 



The following gentlemen were admitted into the Society : 



John Carrick Moore, Esq. 

 Edmund Potter, Esq. 

 Henry Hyde Salter, M.D. 



The following gentlemen were recommended by the Council for 

 election as Foreign Members : 



Wilhelm Karl Haidinger. 

 Antonio Secchi. 



The following communications were read : 



I. " On Colour-Blindness." By WILLIAM POLE, Esq., F.R.A.S., 

 F.G.S., Memb. Inst. C. E. Communicated by CHARLES 

 MANBY, Esq., F.R.S. Received June 7, 1856. 



(Abstract.) 



The author's object in this paper is to state his own case of colour- 

 blindness, which he believes to be one of the most decided on record ; 

 to compare it with others of the same kind ; and to show that the 

 general phenomena attending this defect of vision are more uniform 

 and consistent, as well as more easy of explanation, than is generally 

 supposed. 



For general information on the subject, reference is made to a 

 work lately published by Dr. Wilson of Edinburgh, entitled " Re- 

 searches on Colour-Blindness," in which a great number of cases are 

 fully described, and the optical and physiological theories of the 

 defect carefully discussed. 



