12 IN STARRY REALMS. 



culty of exit would be ten times more perilous in the 

 larger building than it would be in the smaller one. 



This illustration will show the contrast between the 

 escape of heat from a large body and the escape of heat 

 from a small one. For the purpose of our argument, the 



Fig. 2. The Solar Prominences. 



sun's diameter may be represented as one hundred times 

 that of the earth. The surface of the sun will exceed 

 the surface of the earth in the proportion of 10,000 to 1, 

 and the volumes of the two bodies will be in the propor- 

 tion of 1,000,000 to 1. If the two bodies possessed 

 originally the same temperature, and were composed of 

 the same materials, the sun would possess a million times 



