142 DEATH AND RESURRECTION. 



forces. But a large mass of individuals 

 cannot merge at once into an all-em- 

 bracing entity. This result can only be 

 reached by a series of higher and lower 

 intermediary units, each defined by its 

 particular share of the total labor. 



A closer study of the organisms will 

 show that they all without exception 

 are composed in this way. 



The cells in any organism in nature 

 combine into higher and higher units 

 as follows: 



The primary unions of the cells are 

 the tissues, where all the cells perform 

 the same function in the same way. 

 Of these tissues is formed the nearest 

 higher unit, the organ. As the tissue 

 was a union of cells, the organ is a 

 union of tissues. Then we have a sys- 

 tem of organs. To each such higher 

 system a more comprehensive function 

 is assigned. By distributing the total 

 labor among the different systems 

 these merge into the organism which 

 unites the whole cell-mass into one 



