THE 



SCIENTIFIC PROCEEDINGS 



OF THE 



ROYAL DUBLIN SOCIETY. 



Yol. XIV. (I.S.), lo. 10. JAIUART, 1914. 



9 



FUETHEE OBSEEVATIONS 01^ PHYTOPHTHORA 

 ERYTBP08EPTICA PETHYB., AND ON THE 

 DISEASE PEODUCED BY IT IN THE POTATO 

 PLANT. 



GEOEGE H. PETHYBEIDGE, Ph.D., B.Sc, 



ECONOMIC BOTANIST TO THE DEPARTMENT OF AGEICULTUEE AND TECHNICAL INSTRUCTION 

 FOR IRELAND. 



(PLATE XIII.) 



[/ uthors alone are responsible for all opinions expressed in their Communicalions. 



DUBLIN : 

 PUBLISHED BY THE EOYAL DUBLIN SOCIETY, 



LEINSTER. HOUSE, DUBLIN. 



WILLIAMS AND NORGATE, 



14, EEKKJETTA S'JKEET, COYENT GARDEN, LONDON, W.C. 



1914. 



Price One Shilling. 



