Protoplasm in Coenocytic Hyphae. 507 
In conclusion I may express the opinion that the move- 
ment is an incidental feature in the life of the plant. It does, 
without doubt, aid in the transfer of nutrient material to points 
where growth is taking place, as De Vries has pointed out ; 
but I believe that growth is not dependent upon it, and that 
full and normal development takes place without the movement 
coming into action. 
M m 
