320 



THE WONDERS OF GEOLOGY. 



Lect. IV. 



abyss of an ocean ; for the economy of the living corals 

 fits them to live only in waters of moderate depths. It 

 would be tedious and uninstructive to place before you 



Lign. 58. — Corals from the Chalk Formatiox. 



Fig. 1. Turbinolia Konigi from the gait : the fossil is attached to the marl by the 

 disk, the base lying uppermost and exposed. 2. The upper surface of Turbinolin 

 Konigi, imbedded in gait. 3. Caryophyllia centralis, from the chalk near Lewes. 

 4. Fungia in limestone, from Maestricht. 5. Gorgonia, from Maestricht. 



lists of the scientific names by which the zoophytes of 

 the chalk are known to naturalists ; it will suffice to 

 observe, that the more delicate forms, as flustra, millepora, 

 cellepora, retepora,* &c. are very abundant : and in some 

 localities of the greensand, as, for example, the quarries at 

 Faringdon, in Berkshire, the strata literally swarm with 

 various species of spongia, siphonia, &c.;| the nature of 

 these fossils will be explained in a subsequent lecture. 



* See Medals of Creation, vol. i. p. 284. 



f Ibid. p. 256. 



