58 
A corrected Section of Chicksgrove Quarry, S. of the 
Village and of the River, in the Parish of Tisbury, 
in Wiltshire. 
1. Top of the Quarry.—Rubble, fourteen feet—No 
shells in this bed. (Impure chalk.) 
2. Stone not good, two feet—The lower part of this 
bed contains the same shells as the chalk below it. 
3. Chalk, two feet.—Trigonias three species, Pectens 
like those of Thame, Oxfordshire, Ostrea several species, 
a thick equivalve, bivalve which is common in the rubble 
beds of freestone, a small bivalve, perhaps Unio, two 
other small bivalves and a Trochus like those of the flinty 
chalk. (Hard chalk.) 
4, lint, four inches, (approaching chert.) 
5. Chalk, eleven feet—A rubbly Chalk without shells. 
(Hard chalk.) 
6. Spangle bed, five feet six inches—Contains Am- 
monites, Oysters, and various other shells changed into 
spar. (Limestone, containing some white, but no green 
sand.) 
7. Walling Rag, two feet six inches—Fragments of 
shells changed into spar. (Like No. 6, only coarser and 
harder.) 
8. Devil’s bed, two feet—Fragments of shell changed 
into spar, smaller shells than the Walling Rag. (Like 
No. 6.) 
9. Great Rag, three feet—No shells, or only small 
fragments. (A compact sandy Limestone, with minute 
grains of green sand.) 
10. Brown bed, three feet—Contains Ammonites. 
(Less compact than the last, with more green sand, some 
parts of a loose texture.) 
