___________________________________________________________________ | | | |_PROVED FACTS_. |_NECESSARY CONSEQUENCES_ | | |(_afterwards taken as Proved | | |Facts_). | |_________________________________|_________________________________| | | | |RAPID INCREASE OF ORGANISMS, | | |pp. 29, 265; ("Origin |STRUGGLE FOR EXISTENCE, | |of Species," p. 75, 5th Ed.) |the deaths equalling the | | |births on the average, p. 30; | |TOTAL NUMBER OF INDIVIDUALS |("Origin of Species," chap. | |STATIONARY, pp. 30, |III.) | |266. | | |_________________________________|_________________________________| | | | |STRUGGLE FOR EXISTENCE. |SURVIVAL OF THE FITTEST, | | |or Natural Selection; meaning | |HEREDITY WITH VARIATION, |simply, that on the | |or general likeness with |whole those die who are | |individual differences of parents|least fitted to maintain their | |and offspring, pp. |existence; ("Origin of Species," | |266, 287-291, 308; ("Origin |chap. IV.) | |of Species," chap. I., II., V.) | | |_________________________________|_________________________________| | | | |SURVIVAL OF THE FITTEST. |CHANGES OF ORGANIC FORMS, | | |to keep them in harmony | |CHANGE OF EXTERNAL CONDITIONS, |with the Changed Conditions; | |universal and unceasing.--See |and as the changes | |"Lyell's |of conditions are permanent | |Principles of Geology." |changes, in the sense | | |of not reverting back to | | |identical previous conditions, | | |the changes of organic | | |forms must be in the | | |same sense permanent, and | | |thus originate SPECIES. | |_________________________________|_________________________________| IX. THE DEVELOPMENT OF HUMAN RACES UNDER THE LAW OF NATURAL SELECTION.