A Still Progressive Tissue. 137 



that man has so prodigiously surpassed all other species of 

 mammals, made them subject to him, and overrun and 

 dominated the whole earth. In the physical sense, the 

 evolution of this tissue has been strangely overlooked by 

 many, in fact most, biologists, or, if touched upon, has not 

 been held to determine the question of man's true position 

 as a progressive mammal, compared with other species 

 which are either unprogressive or retrogressive. For 

 while all have abundantly recognized man's mental 

 superiority to the lower animals, and connected it vaguely 

 with his larger brain, this superiority of intellect has been 

 attributed to a certain adventitious endowment of the 

 nature of " soul," not a natural part of the organism, but 

 an implantation from an extraneous source. Nor have 

 biologists clearly pointed out as yet the relative truth of 

 the matter in connection with man's rise from brute life to 

 the estate of a world-dominant being. 



The human organism, from the latest standpoint of 

 science, is a compact, federal union of thirty or more 

 differentiations of cell life. Every one of these thousands 

 and millions of cells of which each tissue is composed, is 

 a more or less independent creature, possessing to some 

 considerable extent individuality and self-direction. They 

 are banded together, however, indissolubly, and in certain 

 situations are in protoplasmic contact by means of living 

 filaments, so sentiently that all live and feel as one. 



These orders of cell life thus confederated have, in the 



