THE BEGINNINGS OF LIPE. 



211 



Monads in a manner presently to be described ; whilst 

 in others they seemed to remain for a longer period 



FIG. 56. 



Simplest Mode of Development of Monads and Fungi from the 

 Pellicle. (X 1670.) 



a, a. First stage of differentiation of separate and aggregated corpuscles. 



b, 6. Such corpuscles in a more refractive condition, developing into 



Monads. 

 c, c. Fully-developed Monads. 



d. Larger area in first stage of differentiation. 



e. Refractive corpuscles which will develop either into Monads or 



Fungi. 



/,/. More refractive corpuscles which give birth to mycelial filaments 

 as in g, and ultimately expand into a form of Penicillium (b). 



in the condition of simple motionless corpuscles. 

 Other solitary corpuscles or small areas began to form in 

 the pellicle in precisely the same manner, though they 



P 2 



