PROTOPLASM AND ITS PROPERTIES. 127 
their microscopic size, but still more in their lack of an 
embryo. ‘The spores of slime-moulds are capable, when kept 
dry, of preserving for many years their power of germination, 
Fic. 102. — A Slime-Mould. (a-m, inclusive, magnified 540 times, n magnified 90 times.) 
but in the presence of moisture and warmth they will ger- 
minate as soon as they are scattered. During the process of 
