MATTER AND "MIND-STUFF" 333 



to tte simplest atoms and electrons. Simple, no 

 doubt, only relatively to our own scale of being ; for 

 these in their turn may be highly complicated too. In 

 this way, however, we have perceived the correlation 

 of vital phenomena from the complex to the simple 

 and from the simple to the complex. 



The physical basis of life is in truth the neces- 

 sary foundation of this correlation, or, at any rate, 

 the principle which enables us to view it as a 

 consistent and philosophic whole. By the artificial 

 production of cells in protoplasmic substances we 

 have been enabled to imitate some of the pheno- 

 mena of nature, however different, however totally 

 distinct the two may be. These types of artificial 

 life with their metabolisms, their interactions with 

 their surroundings ; their growth, reproduction, 

 decay and death, all point to the conclusion that 

 by similar though more complex conditions the 

 organisms which have survived in Nature through 

 the most opposing circumstances were, in a like 

 manner, also similarly formed. 



The minute structure of these cells, and of cells 

 generally, is the circumstance upon which subse- 

 quent development largely depends. On the func- 

 tion of the nucleus in its ultimate form, with its 

 great potentialities, the development really rests. 

 The monera must have a structure relatively simpler 

 than that of other cells, and this most probably 

 accounts for the fact that they have never properly 

 developed. 



This theoxy of the nucleus doubtless plays a 



