198 " Spotting " of Apples in Great Britain 



appeared at the surface of the apple : two tubes of agar were inoculated 

 and yielded on Oct. 2nd, Pleospora and Polyopeus purpureas respectively. 



In Potts's Seedling (Sept.-Oct.), the diseased tissue obtained from 

 artificially produced spots repeatedly yielded Polyopeus purpureus and 

 not Pleospora. A spot which appeared naturally on the same apple also 



