THE 
SCIENTIFIC PROCEEDINGS 
OF THE 
ROYAL DUBLIN SOCIETY. 
Vol. XI.(N.8.), No. 7. MARCH, 1906. 
ON ENTOPTIC VISION ; 
THE SELF-EXAMINATION OF OBJECTS WITHIN 
THE EYE. 
BY 
PROFESSOR W. F. BARRETT, F.R.S. 
[PART 1.] 
[Authors alone are responsible for all opinions expressed in their Communications. | 
DUBLIN: 
PUBLISHED BY THE ROYAL DUBLIN SOCIETY. 
WILLIAMS AND NORGATE, 
14, HENRIETTA-STREET, COVENT GARDEN, LONDON, W.C. 
1906. 
Price Sixpence. 
