298 BIOLOGICAL PHYSICS 



process of neuronal ingestion, intra-cellular molecular dis- 

 position of the ingested materials, and imbibition by 

 the nuclei, and nucleoli, of their respective nutritional 

 elements, by their respective peripheral, and containing, 

 membranes, or outer coverings. These processes of 

 nervine, protoplasmic ingestion, and nutrition, result, 

 and culminate in constant plasmic streams issuing from 

 the neurons, and circulating along their axons, in the 

 form of the medullary, and axis-cylinder, substances, and 

 the provision of what nutritive material is necessary for the 

 insulated, and independent, needs of the nucleolar bodies. 

 Respecting this ever-ready supply of neuronal plasma, 

 we would observe, that, even the most fluctuating de- 

 mands, on the part of the systemic nervature, can be, at 

 once, and fully met, by a constant supply, without the 

 necessity of appeals to the supplementary offices of the 

 blood circulation, thus, securing a self-sustaining power, 

 both material, and dynamic, which places the maintenance 

 of life, on a sound, and secure, basis. Moreover, we are 

 disposed to think, that the natural, and rhythmic, occur- 

 rence, of sleep, and disuse of the higher systemic nerve 

 centres, explains, and has its explanation in, lapse of 

 " dynamic release," or periodic " dynamic conservancy," 

 and " renewal," or " redistribution," of nerve energy. 



