ON THE CELL 



303 



with all parts innervated by that system, that it dominates 

 the, working, and destiny, of every member of that 

 species, in a way absolutely unique, in the whole extent 

 of natural history. 



FIG. 127. UPPER SURFACE OF THE BRAIN SHOWING THE CONVOLUTIONS. 

 ^ (From R. Wagner.) 



This view was taken from the brain of Professor C. F. Gauss, the mathematician, 

 who died in 1854,' aged 78. It is selected as an example of a well-formed brain 

 of the average size with fully developed convolutions. 



, a, a, superior or first frontal convolution ; a.', a', a', second or middle frontal ; a", 

 third or inferior frontal ; A, A, ascending frontal convolution ; B, B, ascending 

 parietal convolution ; , superior parietal lobule ; b" ', inferior parietal lobule ; c, 

 first or upper temporo-sphenoidal convolution ; al, first or upper occipital convolu- 

 tion ; d' , second or middle ; rf", third or lower ; /, /, the longitudinal fissure ; r, 

 the sulcus of Rolando ; p, the external parieto-occipital fissure (which appears, in 

 consequence of the position of the brain, nearer to the posterior extremity than it 

 really is). 



The cell, therefore, may be regarded as the " all in all," 

 in the process of the evolution of living forms, as they 

 are to be observed throughout the entire field of natural 

 history, but its initiation, or start in life, involves a creative 

 act, so momentous, and unique, as to place it entirely 

 beyond the power of the spontaneous action of any form 

 of known energy, on any form, or combination, of known 

 matter, or substance, to accomplish, hence we must regard 



