THE 



SCIENTIFIC PROCEEDINGS 



OF THE 



ROYAL DUBLIN SOCIETY. 



Vol. XII. (I.S.), lo. 11. MAT, 1909. 



ON PHOTOGRAPHY BY REFLECTION UNDER 

 CONTACT. 



E. E. FOURNIER d'ALBE, B.Sc, A.Pu.C.Sc, M.R.IA. 

 (PLATE VIII.) 



[A uihors alone are responsible for all opinions expressed in their Communicalions.'] 



DUBLIN : 



PUBLISHED BY THE EOYAL DUBLIN SOCIETY, 



LEINSTEU HOUSE, DUBLIN. 



WILLIAMS AND NORGATE, 

 14, HENRIETTA STREET, COVENT GARDEN, LONDON, W.C. 



1909. 



Price Sixpence. 



