170 



TEMPLE OF JUPITEE SEEAPIS. 



[Ch. XXX. 



Rome 



century before Christ), was proliibited by the Eoman Senate, 



^ror Tiberius. But there is little 



Emp 



Empe 



the shrines of the Egyptian god were again thronged by 

 zealous votaries ; and in no place more so than at Puteoli 



marts 



Alexandria. 



Without entering farther into an enquiry which is not 

 strictly geological, I shall designate this valuable relic of 

 antiquity by its generally received name, and proceed to 



consider the memorials * 

 three standing columns 



in most legible characters by the 

 hand of Nature. (See Frontispiece, Vol. I.) These pillars, 

 which have been carved each out of a single block of marble, 

 are 40 feet 3^ inches in height. An horizontal fissure nearly 

 intersects one of the columns; the other two are entire. 

 They are all slightly out of the perpendicular, inclining 



somewhat 



Their 



smooth 



feet above their pedestals. Above this is a zone, about nine 



mar 



of marine perforating bivalve 



t The holes 



animals 



minute 



At the bottom 



many 



numbers 



many the valves of a species of area, an animal which con- 

 ceals itself in small hollows, occur. The perforations are so 

 considerable in depth and size, that they manifest a long- 

 continued abode of the lithodomi in the columns ; for, as the 

 inhabitant grows older and increases in size, it bores a larger 

 cavity, to correspond with the increased magnitude of its 

 shell. We must, conseouentlv. infRr a, lonp^-continued im- 



^ This appears from the measurement formed out of a single stone was first 



of Captain Basil Hall, E.N., Proceed- pointed out to me by Mr. James Hall, 



ings of Geol. Soc., No. 38, p. 114 ; see and is important, as helping to explain 



also Patchwork, by the same author, why they were not shaken down. 



vol. iii. p. 158. The fact of the three f Modiola JithopJiaga, Lam. Mytihcs 



standing columns haying been each lithophagns, Linn. 





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 water 



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 tliese 



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upper 

 meiits. 



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