TAB. VII. 



CALX Creta. 

 Common Chalk. 



Class 2. Earth. Order 1 . Homogeneous. 

 Gen. 1. Lime. Spec. 2. Carbonate of Lime. 

 Div. 3. Amorphous. 



Syn. Chalk. Kir. v. 77. 



Craie compacte. Born, v. 1. 2,81. 

 Chaux carbonatee crayeuse. Hauy, v. 2. 166. 

 Creta scriptoria. Linn. Syst. Nat. v. 1.206. Gmeh 

 v. 3. 86. 



Albion cliffs, famed of old, are the chalk-hills of Dover 

 in Kent, and chalk is sufficiently known to abound in many 

 parts of Britain. 



There is no chalk in Cornwall*. Chalk is understood 

 to be a precipitation of carbonate of lime, holding a little 

 clay and some flinty particles. It is often in very thick 

 strata, frequently under sand. Flints in strata and of irregular 

 forms are very common in it, and sometimes flints full of 

 flaws, as if mouldering to pieces. Thestratum is mostly 

 horizontal, but sometimes otherwise/as at the Isle of Wightf. 

 Many remains of animal exuviae are found in chalk, as 

 shells, echini, corals, &c. and with the rhombic frac- 

 ture : sometimes the echinites are filled with perfect flints. 



* Dr. Maton's Tour to the Western Counties, 

 t Sir H. C. Englefield in Linn. Trans. t>, 6. 



