310 ProceedhufB of Economic Biologists 



that this pest was a comparatively recent introduction, but was firmly 

 established in Surrey and some other of the southern counties. In his 

 own garden, Mr Green had observed that injury was confined to plants 

 of the poorer varieties, especially such as had small, hard foliage. The 

 insects lived on the under-surface of the foliage, but their presence was 

 indicated by a reddish brown discoloration upon the upper surface of 

 the leaves. 



Papers. 



The following papers were read and discussed : 



Mr W. F. Bewley. "Sleepy Disease of Tomato." 



Mr W. E. Hiley. "A new Method of measuring the Light Intensity 

 in Woods." 



MrF. R. Petherbridge. "The Life-history of the Strawberry Tortrix 

 {Acalla comariana).''' 



On Thursday, Dec. 11th, 1919 a Symposium on "The Integration of 

 Mycological Research with Practice in Agriculture, Horticulture and 

 Forestry" was held. The chair was taken by Professor Keeble, F.R.S. 

 There were present 44 members and 16 visitors. 



