ANIMAL AND VEGETABLE 107 



between A and B, while the force was still being exerted, 

 the process of contracting the exoplasm in the middle in 

 order to ensure the division of the cell at that point must 

 have gone on ; and in B we see that the lines of force, or 

 the spindle-fibres, are ceasing to exist. That being so, and 

 the cell having divided into two parts, each with its nucleus, 

 nucleolus, and single centrosome, it prepares itself for 

 renewed growth and for re- division. 



I am, of course, aware that the chemical changes which 

 take place are all important, but they are not in my depart- 

 ment, nor am I qualified to deal with them. I am en- 

 deavouring, and shall continue to endeavour, to point out 

 that the structure of the body is primarily electrical, and 

 that electrical, or neuro-electrical, action is precedent to 

 chemical change. 



And when we know more about their precise con- 

 nections I am sure we shall find that the nucleus and 

 nucleolus play a very important part in the neuro-electrical 

 scheme of cell-reproduction. In this regard I should like 

 to draw the attention of my readers to that section of this 

 work which treats of ganglion cells in their electrical 

 aspect, and would further observe that in the absence of 

 stimulus or excitement the amceba assumes, and with it, 

 I take it, all cells assume, a form more or less spherical or 

 ovoid, " elongated, annular, or irregularly lobulated " 

 (Halliburton), which in a condition of rest, or, in other 

 words, prior to change, is their natural shape. 



It will be seen also that after the division of the cell has 

 taken place the single centrosome 

 (see Fig. 18) occupies a position close 

 to the nucleus. In that state it is at 

 rest, in the sense that the nucleus 

 is at rest. When, however, the time 

 has arrived for division of the cell to 

 commence the centrosome is seen as in F| S- 18 - 



Fig. 19, 



