ME. J. H. JEANS ON THE STABILITY OF A SPHERICAL NEBULA. 
53 
results to be expected for a gaseous nebula are of so much more general a kind than 
those usually inferred from the analogy of a liquid mass, that no difficulty need be 
experienced in referring existent planetary systems to a nebular or meteoritic origin, 
on the ground that the configurations of these systems are not such as could have 
originated out of a rotating mass of liquid. 
In conclusion, I wish to express my indebtedness to Professor Darwin for much 
assistance which I have received from him throughout the course of my work. 
