Milthouse: A new Boring in the Vale of Pickering. 195 
Thickness. Total Depth. 
Ft. ins. Ft. ins. 
- Hard pan, composed of sand 
ANCIENT and gravel, with many 
ALLUVIUM. ;  oolitic grains and frag- 
| ments of oolitic limestone 17 — 123 — 
Ditto; with less:sandigraing 29— 125° — 
Kimeridge clay... 20 I5l — 
Rocks (appem@ale: (Grit. \youli4io— x65 = 
NoTre.—Water rose to the surface from the ‘hard-pan ’ at 
106-125 feet, but was afterwards excluded by the Borehole 
tube which finished at 153 feet. 
At 160 feet the overflow was at the rate of 4680 gallons per 
day. Two small fissures were then passed through, and the 
flow at 165 feet increased to 7538 gallons per day. 
The Irton Boring is north of Derwentdale, and its Section 
is given in the Geological Memoir for the District (No. 54, 55, 
new series), but for easy comparison we reproduce the Section 
as far as the Calcareous Rocks, immediately below the Kime- 
ridge Clay. 
IRTON BOREHOLE, SCARBOROUGH WATERWORKS. 
6 inch sheet, No. 93. 96°00 ft. above O.D. 
Thickness. Depth. 
Ft. ins. Ft. ins. 
Clay Tn eG i 6 
Gravel 74 18 10 
Clay ee 2.3TO aX 
Sand and gravel OF16 ZH 2, 
} Marl with stones a O ZR. ge 
ALLUVIUM. Sand and gravel BiG 25. BI 
Marl and stones 65 32 4 
Quicksand and gravel Teles 1G) AA 
Strong dark warp .. Sie 3 Ag. 4 
. Yellow marl and stones ZG 5a 
KIMERIDGE ( Bluemarl .. ad 2 9 55 10 
CLay. ( Blue bind (fossils) .. Aine 2 96 oO 
Stone bind .. Ba 3 99° 3 
Upper Calcareous grit, etc. 
It will be noticed that in each case the Kimeridge Clay has 
been passed through and the Upper Calcareous Grit encountered 
immediately below. 
As a water supply the new boring has been very successful, 
there being a good supply from the rocks underlying the Kimer- 
idge Clay, which is under an artesian head, sufficient to force the 
water to all parts of the farm premises. 
The following is a summary of the geological information 
obtained from the boring :— 
(a) If the line of fault as shewn on the geological maps be 
continued eastward it must now be drawn south 
of Derwentdale, thus giving a great increase to 
1911 “May Fi 
