ESSEX NATURALIST, vol. AT///., pi. 17 /.] 
[To face p 257. 
Fig. 10.— Breeding-hole used by Mosquitoes in Roots of a large 
Beech-tree in Epping Forest. 
From plulo by A. IV. Dennis. 
Fig. i.— Eight Species of fertile Lichens on Vertebra of a Sheet 
Xawthcvia parietiva Th. Fr. most prominent. X iL 
