CHAPTER I 

 THE MAKING OF WORLDS 



§1. Laplace's Nebular Hypothesis. 



§2. Difficulties of the Old Nebular Hypothesis. 



§3. Spiral Nebula. 



§4. The Tidal Theory. 



§5. Planet esimals. 



§6. General Agreement as to the Nebular Origin of the 



Solar System. 

 §7. The Old-Time Religious Wonder. 

 §8. Three General Impressions. 

 §9. The Evolution of Matter. 

 §10. The Unification of Energies. 

 §11. The Fashioning of the Earth. 

 §12. Making a Home for Life. 

 §13. Criticisms. 

 §14. A Possible Picture. 



