NUTRITION, INNERVATION, ETC. 563 



and dynamically the result of the combination of two 

 formative bodies, each of the most highly specialised and 

 potential character, possesses within itself, besides life, 

 the ability to undergo, with the aid of the maternal 

 structures, and vitality or energy, changes fitting it for a 

 multi-cellular existence and ultimate independent life. 



The uni-cellular body lives and has its being in virtue 

 of its molecular material basis, being energised, or inner- 

 vated, and organised by its originally contributed or 

 innate energy, supplemented in time by union with the 

 material structures, and the pseudo-parasitic acquirements, 

 from this source, of both energy and matter. In its 

 earliest, or uni-cellular, condition, it is thus innervated, or 

 energised, by its own intrinsic force, through the special 

 molecular arrangement, or organic disposition, of its 

 substance, in such manner as affords the necessary facilities 

 for the exercise, or operation, of the inherent and in- 

 herited intra-cellular formative impulses. 



The entry of the sperm into the germ cell determines, 

 or initiates, the phenomena of intra-cell circulation, inner- 

 vation, and development, by the introduction into a 

 hitherto passive body of an active nucleus and formative 

 impulse, and by the bringing into direct contact, and 

 within the range of influence of mutual affinity, highly 

 energised, and vitally active, materials, and marks the 

 beginning of the evolution of the complex mechanisms 

 known as alimentary, circulatory, and nervous systems, 

 which form the machinery of the succeeding stages of 

 multi-cellular and embryonic development, and fcetal, 

 independent, and adult life. 



It therefore goes without saying that uni-cellular is co- 

 extensive and synonymous with intra-cellular life here, and 

 that all the attributes of organic activity, and the display 

 of vital phenomena generally, are manifested, in miniature, 

 within the precincts of such uni-cellular organisms, the 

 material changes and exchanges being conducted in mole- 

 cular and atomic proportions, and the dynamic phenomena 

 displayed being measured on the same scale of magnitude. 

 Within each such organism, it follows that all the 

 material or metabolic arrangements, and re-arrangements, 

 take place along certain definite lines or channels, the 



