564 BIOLOGICAL PHYSICS 



lumina of which are of atomic proportions only, by the 

 influence of dynamic impulse and propulsion, determined 

 by physical, chemical, and vital necessities and laws, as 

 bindingly and exactly operative as are those displayed in 

 any other department of organic nature ; in this uni-cellular 

 organic microcosm, moreover, we see the cell phenomena 

 of plant and animal life generally " anticipated " on the 

 minutest of scales, the substance of the cell plasma 

 circulating within it, from one atomic space to another, by 

 intra-cellular dynamic agency, very much in the same 

 manner as tissue plasma is conveyed from cell to cell by 

 inter-cellular dynamic agency along the inter-cellular canali- 

 culi, commonly known as cell processes or inter- 

 communicating fibres not solid, but, as we think and 

 contend, hollow tubes or porous textures. Circulation, 

 therefore, manifests itself from the first instant of uni- 

 cellular life throughout the whole area of intra-cellular 

 space and substance, and is determined and sustained by 

 the dynamic and evolvent influence of the inherent energy 

 of the organism for developmental purposes and ulterior 

 organic ends, innervation being thus also "foreshadowed," 

 and the complex process of metabolism and nutrition fully 

 and clearly displayed in their elementary and simplest 

 forms. 



It thus becomes evident that human uni-cellular life 

 originates, or begins, in virtue of the co-existence in the 

 fecundated ovum, or combined germ and sperm elements, 

 of an initiative developmental power, energy, or dynamic 

 influence, whereby these elements are histologically or 

 molecularly arranged in such order and sequence as to 

 permit, and determine, a regular and coherent process of 

 formative growth and development, capable of leading to 

 similar, but further physiologically diversified multi-cellular 

 structures, according to definite plans, and with definite 

 objects or purposes. The parentally imparted energy, 

 thus employed, arranges the matter of the ovum, or 

 fecundated cell, into rudimentary organic units or mole- 

 cular groups in pseudo-fibral form, each constituent 

 molecule of which, after having subserved its organic 

 purpose, becomes used up, and has left a structural void, 

 being replaced by another, thus initiating or founding the 



