Correspondence. 527 
great bulk of which was devoid of anything like stratification, ex- 
ceedingly tough and smooth, and in all respects resembling Boulder- 
clay, excepting that it is browner in colour than that occurring on 
the North Welsh coast. 
Ata height of from 30 to 40 feet above the sea, it rests on a 
continuation inland of the raised shingle-bed on the banks of the 
river Taw described by De La Béche. The clay near Upper Rounds- 
well appears to be nearly 90 feet, and from this point, which is given 
115 to 120 feet above the sea, it gradually falls away, and thins out 
to nothing towards the east and west. The clay has for many years 
been worked near Fremington towards the western extremity of the 
mass for the manufacturing of earthenware. Mr. E. B. Fishley, 
the proprietor of the pottery, showed me several large blocks that 
had been found in the middle of the deposit ; they were unaccom- 
panied by smaller stones. One of them, a mass of Basaltic trap 
34 x24 x2 feet, weighing many hundredweights, was, at the time of 
my visit in March 1862, to be seen in the hamlet of Combrew, and a 
smaller mass of Amygdaloid trap in the yard of Mr. Fishley’s 
pottery. Neither of them bore any marks of glacial striation ; but 
they must have come either from the confines of Dartmoor, a distance 
of at least twenty miles, or from South Wales; and it appears impos- 
sible to account for their position, except on the theory of ice- 
transport. A fuller description of the Fremington deposit will be 
found at page 445 of the 20th vol. of the Journal of the Geological 
Society.—I am, &c. GrorGE Maw. 
Benruatt Harz, NEAR Brosetey: Oct. 10, 1865. 
THE PHOSPHATE-BED AT FOLKESTONE, 
To the Editor of the GEOLOGICAL MAGAZINE. 
Srr,—Mr. Seeley, in his paper on the ‘Sequence of Rocks and 
Fossils,’ speaks of the ‘ phosphate-bed at Folkestone, as being in all 
probability of plant origin.’ As from observation I believe it to be 
of animal origin, I send you the following facts. 
Below the phosphate-bed is a seam of Ammonites mammillaris, two 
or three inches thick, resting on the Lower Greensand. Above the 
said bed is a seam of Ammonites dentatus and mammillaris ; the two 
seams and the phosphate-bed forming the junction-bed of the Green- 
sand and Gault. 
This junction-bed contains rolled water-washed Ammonites, with 
nodules of phosphate adhering to them; drifted wood, containing 
Pholas, Teredo, Fistularia, vertebra of Ichthyosauri, and the phos- 
phatic nodules, which, in nine cases out of ten, are plainly Mol- 
luskite, generally Rostellarie and Pterocere. On the little phosphate 
seams between the beds of the Folkestone Gault I can give further 
detail, if of interest. 
; Sir, yours, &c. C. E. R. 
BEAMINSTER. 
