COLE: EROSION OF THE YORKSHIRE COAST. 143 
The above measurements refer to three classes of rocks :— 
(a) Those at Sewerby to a chalk cliff capped with gravel. 
(4) Those at Sands Cottage to Boulder Clay overlaid with gravel 
and lacustrine marl. (c) That at Hilderthorpe to cross-bedded 
sands and laminated clay. The rate of denudation naturally 
increases from (a) to (c). At (a) Sewerby the result gives a loss of 
about 2 ft. and 1} ft. per annum at the two stations respectively. 
At (4) Sands Cottage, of about 34 ft. and 14 ft. per annum, or 
a mean of 23 ft. per annum. At (c) Hilderthorpe, a loss of 7 ft. 
per annum. Hence the cliffs immediately to the south of 
Bridlington Harbour are wearing away some three times faster than 
those to the north. 
JUNE 9TH, 1892.—SEWERBY. a 
A. new station has been selected at Sewerby. Length of hedge, 
from hedge of ring plantation to the cliff top, at the east side of the 
first field east of Sands Road, 511 ft. 5 in. 
AUGUST 5TH, 1892.—EASINGTON. 
At Easington, near Spurn Point, a road runs to the coast; 
a wooden boat-shed has been erected, which, however, is not 
destined to remain many years. Distance from S.E. corner of boat- 
shed (parallel to south side), to edge of cliff, 101 feet 3 inches. 
AUGUST 5TH, 1892.—KILNSEA. 
At Kilnsea there are fortunately some former measurements, 
independently of the well-known data concerning Kilnsea church, 
the chancel of which went in 1826, and the nave in 1833, and the 
remains of whose tower are still visible, at the lowest spring ebbs, 
at a distance of some 240 yards from the present cliff of boulder 
clay. 
a stone inserted in the wall of the Blue Bell Inn, it is 
recorded that the distance from the sea, ie., the cliff top, was 
in 1847, 534 yards. 
On the above date (1892), the distance was found to be 341 yards, 
showing an average loss of over four yards per annum, which has 
been apparently the average loss for the last sixty years. 
ere are some cottages near the Blue Bell Inn, on one of 
which is a similar stone recording a distance of 476 yards from the 
cliff top in 1858. In 1892 the distance was found to be 3434 yards, 
which also gives an average of about four yards per annum. Hence 
the coast of Holderness at its southern extremity is being eroded 
faster than anywhere else. 
The foregoing remarks refer solely to the rate of erosion which 
the Committee has to determine. As to the ‘artificial abstraction of 
May 1893. 
