Modern cosmogonies

From Thales to Kant.--The nebular hypothesis.--Criticisms of the nebular hypothesis.--The nebular hypothesis varied and improved.--Tidal friction as an agent in cosmogony.--The fission of rotating globes.--World-building out of meteorites.--Cosmogony in the twentieth century.--Protyle: what is it?--Universal forces.--The inevitable ether.--The forms of nebulæ.--The procession of suns.--Our own system.--Remnants and survivals.--Life as the outcome