PHILOSOPHERS' STONE.PART 137

grand father had suggested plants and animal species had descended from some few primitive species.This suggestion he captured as the first thesis and then the second thesis that evolution was the natural consequence of natural selection.In the book,he wrote."The elephant is reckoned the slowest breeder of all known animals'but if it had six young and survived to a hundred after a period of from 740 to 750 years there would be nineteen million elephants alive descended from the first pair " of that animal specie.That even among animal of same species,the struggle is the hardest and very little slightest changes or minute variations will lead to intense transformations over the long haul.The bitter the struggle the bitter the survival leading to quicker evolution of the new species.The consequence of continual selection will be that the best adapted to an environment will continue to perpetuate that race in that environment.So,the raw material of evolution will be the continual variation of individuals within