364 



SPECIAL GEOLOGY. 



elevation of, at least, twenty-three feet, such being the height 

 of the upper band of perforations. The movement is ascribed 



FIG. 262. Temple of Serapis. 



to volcanic agency, the whole district around being volcanic, 

 and the rise and the submergence of the temple is attributed 

 to the elevation and depression of the strata on which the 

 structure was erected. 



The movement appears to have been extremely gradual, 

 for it has been ascertained by Italian geologists, that the 

 pillars are actually sinking again, owing to the submergence 

 of the soil; yet so gentle and imperceptible are these 

 motions, that the shattered columns of a ruined temple 

 have not been overturned by their operation. 



RISE OF SWEDEN. The phenomena observed in this 

 instance have been verified by observations in various 

 districts, and spreading over extensive areas. Sir C. Lyell 

 having first expressed his doubts of the alleged fact of a rise 



