104 SOCIAL HABITATIONS. 
ably beautiful effect, provided that the observer lies 
on the ground, or stoops sufficiently low to perceive 
the under-surface of the leaves, to which the galls are 
attached. 
If one of the galls be cut open with a knife, it 
BRITISH GALLS, 
Leaf Galls of Oak. Bedeguar of Rose. Galls of Cynips Kollari. 
Cynips Kollari (slightly magnified). Currant Galls of Oak. 
Oak Apple. 
will be found to consist of a soft, pulpy substance, 
fuller of juice than an apple, and somewhat resembling 
the consistence of a hothouse grape. In the very 
centre of the soft mass the knife will meet with 
resistance in the shape of a globular cell of hard, 
