THE BIOCOSMOS CELLULAR. 



of the cell. The physician in these days has 

 to be something of a cellular biologist, even 

 if 'he does not specialize on given lines (like 

 the bacteriologist). The complete view of 

 the Science of Life must include the Sci- 

 ence of Disease (Pathology, Nosology), and 

 the Science of Health (Hygiology or Hy- 

 gienics), as well as the Science of the Cell 

 (now sometimes called Cytology, but far 

 oftener Biology which in this narrow sense is 

 properly a misnomer). All these special de- 

 partments we put under the head of The Cel- 

 lular Blocosmos, which is itself but one stage, 

 the first, of our entire theme. 



The cell, accordingly, being the ultimate 

 unit or the first form of organic Life, consti- 

 tutes the primal division of biological sci- 

 ence as a whole. It is the element out of 

 which all living shapes are constructed, or 

 better, are associated. So it comes that this 

 constitutive element of Life is just now the 

 object of the concentrated pursuit of Life's 

 science. In one sense the biologist has over- 

 taken and caught the cell; in another sense, 

 he is still in the hottest search for it, seem- 

 ingly unable to catch it. What is the matter? 



Very significant is the fact that the Bio- 

 cosmos is moving scientifically in the same di- 

 rection as the Diacosmos, whose trend was 

 set forth in a former volume (Cosmos and 



