234 Transactions of the Boijal Microscopical Society, 
during the life of tlie plant? In the latter case we might have 
bacteria produced, or some forms of minute active vegetable life, as 
a result. What is the nature of the motile bodies themselves? 
The history of the bacterium, with its variable forms and conditions, 
is still left somewhat in obscurity. Zoospores have been known to 
develop within lichen fungi; is it impossible they could develop 
in the locality mentioned ? 
Are they protococci in the active state? Without further 
investigation, I will not dogmatize on the matter, but content my- 
self with the mere statement of fact. 
