PROCEEDINGS OF 

 THE ROYAL SOCIETY. 



vol. xlvii. No. 290. 



CONTENTS. 



PAGE 



Croonian Lecttjbe. — On some Relations between Host and Parasite in 

 certain Epidemic Diseases of Plants. By H. Marshall Ward, F.R.S., 

 Professor of Botany, Royal Indian Engineering College, Cooper's Hill . 393 



Price One Shilling and Sixpence. 



June 24, 1890. 



