Fullers’ Earth “ Passage Beds.” 
VOL. XIX. (i) DEEP BORING— TETBURY WATERWORKS 
.59 
r 23 «- 
b. 
24. 
L. 
26. 
27. 
2ja. 
28. 
Limestone, grey, oolitic, with a yellowish zone 
(i ft. 7 ins.) between 2 ft. 9 ins. and 4 ft. 
4 ins. down : 5 ft. 9 ins. 
Limestone, grey. The upper i ft. 4 ins. (spec. 
236^) is light-grey and ” sparry ; ” the 
lower II ins. (spec. 23^) more shelly, with 
some iron-pyrites : 2 ft. 3 ins. 
Marl, black, shaly, with shell fragments in 
pyritic condition, and, at the base, numer- 
ous small crinoid-ossicles 
Marl, grey, indurated and veins of impure 
limestone (spec, 25a) ; crinoid-ossicles : 
3 ft. 9 ins. . . 
Marl, grey, unfossiliferous, with a 3 to 4-inch 
bed of very fine-gi*ained sandy limestone 
(6^) in the middle : i ft. 
Limestone, grey, impure and dark marl ; i ft. 
I in. . . 
d. Marl, as before, with pyritized shell fragments 
in the lowest 9 ins. (spec, z^d) : i ft. 9 ins. 
e. Limestone, grey, impure : i ft. 5 ins. 
/. Marl, as before : 3 ft. 6 ins. . . 
Limestone, very light-grey, line-grained, for 
the most part sandy to the touch. The 
top-most portion is of a darker grey, is 
bored by Lithophagi, and to the surface 
oysters are attached (spec. 26). The 
upper 6ft. bins, were drawn in one massive 
core, but the remainder (Plate IV., fig. i) 
was softer owing to the presence of marl ; 
while in the bottom inch — shale — were 
numerous little pisolites . . 
[I'^-inch crown used from here.'] 
Limestone, similar to the upper part of 26, 
with dark granules, drawn in one nice 
core (spec. 27) 
‘‘ Fullers’ Earth,” according to the foreman 
Marl, indurated, dark grey (i ft.), passing 
down into light grey limestone, very 
similar to that of bed 27, but with dark 
granules (spec. 28) 
Tliickiicss 
ft. ins. 
8 o 
V12 
10 
5 
3 
3 
o 
Depth 
ft. ins. 
133 u 
134 o 
146 6 
156 9 
162 o 
165 o 
7 6 172 6 
( 29. Marl, black, shaly, without fossils, except for 
a ^-inch layer of Ostrea acuminata J. Sow 7 6 
30. Limestones, greyish, impure with partings of 
shaly marl. The shaly marl, although 
dark, has a tinge of green. Ostrea acum- 
inata J. Sow. common the lower portion i 6 
31. 05 /rgfl-Limestone . . . . . . . . 04 
32. Marl, dark, shaly ; crinoid-ossicles abundant : 
about . . . . . . . . . . II 
33. Limestone, impure, shelly ; Ostrea acuminata 
J. Sow. common, crinoid-ossicles . . i i 
34. Marl, apparently unfossiliferous . . . . 36 
180 o 
181 6 
181 10 
182 II 
184 o 
187 6 
I The specimens referred to in brackets have been placed in the Cheltenham Town Museum. 
