14 
ordnance datum, when it became manifest that there 
were years when there has been a large quantity of 
water stored in the Godstone Quarries, aud no appear- 
ance of the Bourne has taken place, as in the year 1849, 
when the height of the highest water in Godstone 
Quarries was 460-09 feet above ordnance datum, and no 
flow of the Bourne occurred, while in the year 1866, 
which is the largest flow of the Bourne that has been 
gauged, the highest water in Godstone Quarries was 
462°31 feet above ordnance datum. In the year 1876, 
when the Bourne flowed, the water rose in Godstone 
Quarries to 443°12 feet above ordnance datum, whereas 
in the year 1854, when there was a very low water year 
in the country and there was no Bourne flow, the highest 
water in Godstone Quarries rose to 462°75 feet above 
ordnance datum, clearly showing that there is no direct 
connection between the volume of water in the Godstone 
Quarries, as has been repeatedly asserted, and the flow of 
Bourne. The highest water level in these quarries in the 
1877 when the Bourne flowed, was 461:63 feet above 
ordnance datum ; in 1881 it was 458°58 above ordnance 
datum, and in 1883, 456°75 above ordnance datum. 
Highest water The greatest height of water recorded in Godstone 
atl otartiea Quarries was in 1853, when it rose to 467°45 feet above 
ordnance datum, which was at the time of a large Bourne 
flow at Croydon. In the year 1866, the time of the 
largest flow of the Bourne that has been gauged, the 
water in these quarries rose to a height of 462°31 feet 
above ordnance datum. 
Wolume of It may be ordinarily taken that the volume of water 
water in 
Godstone 
Quarries indi- the water in the ground, and there are times when it 
in Godstone Quarries is an indication of the height of 
 eation of 
height water may be used as an aid in judging of the likely appear- 
ie d. . : : 
mee ance or not of a Bourne flow. It is possible also since 
