The Message of Science. 39 



rationally ; nor is there reason to suppose that the cells of 

 the brain are less capable of perception and of memory. 

 In the brain, however, cells of different tracts are con- 

 cerned with experiences of particular kinds, some record- 

 ing the data of vision, others the data of hearing, and still 

 others collating and comparing such data. It is probable 

 that a cell of the tract or group in the area of vision, for 

 example, is largely occupied with depiction of visual 

 imagery, and becomes a kind of living, sentient specialist, 

 or expert in colors and scenery. 



None the less it is a sentient creature, with its own in- 

 ternal economy of nutrition and growth. In a word, it is 

 a sentient self. It perceives, lives and acts from its own 

 personal point of view, for its own behoof and welfare. 

 This much is quite certain. It is a sentient creature and 

 within its limited sphere has acquired a kind of wisdom 

 of its own. More we cannot predicate of the individual 

 cell. It is a pygmy of a limited degree of intelligence. 



Nor does our argument claim that the protozoons first 

 banded together from intelligent foresight as to the result 

 of union. The beginnings of metazoic life were proba- 

 bly accidental per se. But the results of union and divi- 

 sion of labor followed quite the same, and it is from these 

 actual results that our conclusions are drawn. By union 

 of their hitherto separate sentiences the cells evolved a 

 higher kind of sentience, a nous^ a soul, developed to a 



