287 
1907-8.] The Problem of a Spherical Gaseous Nebula. 
Fig. 3. 
T R^.g is the curve of temperature, and D 1<5 R ltg is the curve of density, for a monatomic 
gas {Tc = 1§). T R 2 . 5 , and D.,. 5 R 2 . 5 are corresponding curves for a diatomic gas 
(*=1-4). 
