i a c 



ce. 



i. 



ouse C 



>m 



•'« and fur. 



; - Further 



ick-bedded 



omc of tit 



olite serk 



ill, the rag' 



"iliferoE 



> 



P 



and Li* 

 than forty 



. 46.) 

 containing 



jstersliiu 



aflyiD 



ionised i* 



il's 







V 







; 



4 



of a 



I 



iesp° 



, It COB' 



ttinS 



3. 



OOLITE LIMESTONES. 



77 



!I1 h !l!' J " 10 /" 163 , Sand}r ' and ° f variabIe thickness, gene- xip PEE 



Flints occur some- Galieey « 



, wv»«.v*^^ c*xxu. v/A Veil J 



rally ranging from two to three feet. 



times at the top and bottom of the bed. Map 15 H.W.B. Waii-case43. 



54. 



(S 



Coknbrash limestone, quarried for lime burning 



vford 



55.— Cornbrash limestone— Dorsetshire. 



This limestone in the south-west of England 



Map 18. 



is never 



oolitic, and is generally marked by the fertility of the crops 

 which grow on it. It is a loose rubbly rock, which seldom 

 furnishes stone fit for building, but it is largely converted 

 into lime for the improvement of poorer soils in the neigh- 

 nc from tie bourhood. Brash is a provincial expression, used to de- 



signate any stony soil, and 



is derived from the Saxon, 



bed? front brecan, to break (whence brcec, broken). The word Corn- 



brash, therefore, means the stony soil, suited for the growth 



of corn. Map 1 7 — H.W.B. 



^6. — Fuller's earth rock. 



merset. Map 18. 



Coc/^, near Iloltcn, So- 



This limestone becomes well developed in Dorsetshire, 

 where it is extensively quarried for lime for agricultural 

 and other purposes. Like the Cornbrash, it is not oolitic 



and furnishes a good soil. 



H.W.B. 



57— Fuller's earth rock, oolitic limestone, with broken 



shells, and part of the stem of a plant Cotteswold Mils. 



near Cheltenham. 



The fuller's earth is a clay, generally sepr rating the In- 

 ferior from the Great or Bath Oolite. It varies from a few 

 feet to 150 feet in thickness, near Bath, and contains thin 

 bands of shelly limestone, the thickest of which is called 

 the Fuller's Earth Rock.— H.W.B. 



Coral rag, very fine oolitic limestone— Coast near 



59. 



Dorset. Map 17. 



Coral rag, pisolitic or large-grained oolitic lime- 



stone.— Steeple Ashton, Somerset. 



60— Inferior oolite, Oolitic limestone, composed of 

 oolitic grains of hydrated peroxide of iron in a calcareous 

 cement. — Dorsetshire. 



