PART VI.—LAWS OF MULTIPLICATION.

1. The Factors.

2. _À Priori_ Principle.

3. Obverse _à priori_ Principle.

4. Difficulties of Inductive Verification.

5. Antagonism between Growth and Asexual Genesis.

6. Antagonism between Growth and Sexual Genesis.

7. Antagonism between Development and Genesis, Asexual and Sexual.

8. Antagonism between Expenditure and Genesis.

9. Coincidence between high Nutrition and Genesis.

10. Specialities of these Relations.

11. Interpretation and Qualification.

12. Multiplication of the Human Race.

13. Human Evolution in the Future.

APPENDIX.

A Criticism on Professor Owen’s Theory of the Vertebrate Skeleton.

On Circulation and the Formation of Wood in Plants.

_5th Thousand._ (WITH AN ADDITIONAL PART.) In two vols. 8vo, cloth, price 36s., THE PRINCIPLES OF PSYCHOLOGY.

CONTENTS OF VOL. I.