46 HEEEDITY. 



these molecular atoms at the end of any process 

 tinless you put it in at the beginning. 



5. Here are the atoms ; they do not change their 

 qualities, but only their combinations. Very well, 

 then : if you will allow me to use an algebraical 

 symbol, we know that in the combination of atoms 

 a is always a, and not a plus b or a minus b. What- 

 ever combination a molecular atom enters into, it is 

 always itself, and not itself plus something or minus 

 something. Unless life is involved in the molecular 

 atoms of inert matter, you will not evolve it out 

 of their combination. Spencer admits this, and so 

 brings forward the theory, in his biology, of " com- 

 pound molecular units," whatever that may mean. 

 Compound units! "E pluribus unum" indeed ! A 

 man cannot be in the American Union if he is in 

 none of its States. 



6. Living tissues are co-ordinated according to 

 definite plans. 



7. As every change must have an adequate cause, 

 we are compelled to infer the existence of a co-ordi- 

 nating force behind the action of the bioplasts in 

 each organism. 



8. That force is the cause of form in organisms. 



9. It has as many types as there are types of or- 

 ganisms, vegetable and animal. 



10. "We do not find in chemistry the co-ordinating 

 power which is the cause of form in organisms. But 

 incontrovertibly there is a power which co-ordinates 

 the action of these germinal points, for they are 

 co-ordinated. 



