PLATE XIV 



wv.^QU^Fagus sylvatica) \'.'\i-ii DENSE t\vig(;y ouh;k(j\\-]hs ^.eated 



AND LAKGEK l.K'ANCHES. THEV 



ITES i Eriophyes). the 



IF the TKUXK is I'ROBAllI.Y DUE 

 ING AGAINST IT 



on swollen parts of the trunk 



ake supt'used to have heen caused by 



im:\iunity of the lowhtc I'AKt 



TO CAT-rLE KUB 



