210 HEREDITY. 



tracting to itself a clothing. We subdivide the ani- 

 mal, and each part draws to itself similar clothing. 

 We do not suppose that the co-ordinating power is 

 increased or diminished. It was all in the original 

 organism. It was all in the germ of that animal, and 

 its forty lives have all been evolved from that ori- 

 ginal co-ordinating power. That is what we see. 

 There are the facts. But how they were evolved, is 

 more than we know. It is a mystery, perhaps, be- 

 yond plummet's sounding. 



8. The double identity between the parent and the 

 germ of the child is the cause of the likeness of the 

 latter to the former. 



9. It is not physical sameness which accounts for the 

 likeness of child to parent, but the sameness of the co- 

 ordinating power. 



Many germs of different animals are chemically 

 identical. The difference, therefore, in their devel- 

 opment must be accounted for by the different co- 

 ordinating powers "behind them. It is, therefore, 

 safe to assert, and it appears to me greatly important 

 to emphasize the fact, that it is not a physical sama- 

 ness which accounts for likeness of parent to child, 

 but the sameness of the transmitted co-ordinating 

 power. The sameness of life is the influence which 

 produces the likeness between parent and child, and 

 not the sameness of the famous firm that Virchow of 

 Berlin calls " Carbon, Oxygen, & Co.," a firm which, 

 he thinks, has failed of late ! 



10. In the higher forms of self-multiplication, such 

 as by budding and egg-cells, this law of double iden- 

 tity holds good. 



