85 
At the north end of this cutting, through a bridge which 
carries a local road over the line, there is a very shallow section, 
scarcely indicated on the plan, from three to four feet deep, of 
a bed of sandy marl capped by a thin fissile slate a few inches 
thick. It contains no fossils save a few branching polyzoa, but 
it is of interest since precisely similar beds occur at various 
places in the neighbourhood, and it appears to be a persistent 
member of the otherwise very variable marls and clays of the 
local Forest Marble. 
The next cutting is just beyond where the Burford road 
crosses the line, so I have termed it the Burford Road Cutting. 
It is still in the Forest Marble, but is of a lower series than 
that at Norcote, and contains a greater percentage of Oolitic 
granules in its variable shelly limestones. 
BURFORD ROAD CUTTING 
ft. ins 
1. Soil, very calcareous loam =, Onn 
2. Fissile brashy rubble, with aescaied fetes rs or 
patches of clay “6 cf At ee Zt o 
3. Finer rubble beneath the clays ... eta cs 
4. Clay or marl Or A 
5. Hard fissile plank : 0 5 
6. Very yellow sandy marl ... Oy°39 
(Composition given hele) 
7. Hard shelly plank aoe 0 3 
8. ‘Tile-stones, imperfect with Racing of ‘a Ste Oke |S 
9. Tenacious yellow clay... sos a8 oe as PP 1 lag 47 
10. Tenacious blue clay fh. -36 
11. Coarse, hard shelly limestone, with Ostr ea sisal 5a small 
pockets of clay—Oolitic—and false bedded, splitting into 
slabs ore ares 
12. Tenacious blue clay, with ibid acon’ ‘bea natal: | caer 
13. Compact shelly limestone, with abundant Oolitic granules and 
clay pockets ; splits horizontally +; AS th) Pilon 
13 4 
The so-called “clays” and “ marls” are exceedingly vari- 
able in colour and physical character, but all appear to contain 
carbonate of lime to about the same amount, while the 
proportions of silicate of alumina and quartz granules vary, 
