HEAT AND COLD. 



matter in conformity with their temperatures in rela- 

 tivity, it will form a very attenuated gas when closed 

 away from chance of escape, or smothered. In con- 

 sequence it will buoy the body as a whole to some med- 

 ium between another sun and the extremes of cold, and 

 there continue to revolve by the action of cold and heat 

 on the particles of plastic matter composing the outer 

 borders. This revolution will be very speedy during 

 the heated period, because the gases will expand more 

 when acted on by heat, and contract more when ex- 

 posed to cold. Thereby the expansion on one border 

 of the body and the contraction on the other will cause 

 great displacement in outlines, causing great disturb- 

 ance in equilibrium; and in consequence, great speed 

 in revolution on its axis. 



As it begins to cool, less displacement in outlines 

 by contraction and expansion ; and in consequence, 

 slower movement. The orbital movement, while 

 very hot and gaseous, will be very slow, owing to dis- 

 placement from polar regions to polar regions trans- 

 forming the power into work. The distance from the 

 sun which buoys it will be very great, ow 7 ing to the 

 great nucleus and the heated condition of the crust or 

 forming body. 



240 



