*386 
THE CRETACEOUS ROCKS OF BRITAIN. 
feet of the over-lying chalk; this, however, was not accessible at 
the time of our visit. At the Buckland Lime Works, it is just 
seen at the top of the quarry. 
The large quarry of the Dorking Grey Stone Company at Betch- 
worth has already been alluded to (p. 55); it shows a clear section 
through the zone of Rhynchonella Cuvieri and the upper part of 
the Lower Chalk, the following measurements being taken in 
1897 
* 
<5 
§>/ 
o 
£ 
o 
N 
© 
/Soil and rubble. 
White chalk, firm, in massive courses ( Galer - 
ites subrotundus ), the upper part not 
accessible, but thickness estimated at - 
Rather rough hardish chalk, veined with 
greenish grey. 
Seam of soft green grey marl containing hard 
whitish nodules ------ 
Hard rough chalk hardly nodular, veined and 
streaked with greenish grey, Inoceramus 
mytiloides , Rhynchonella Cuvieri , Terebra- 
tula semiglobosa . 
Hard rough nodular chalk creamy white, 
in massive well defined courses 
Very hard creamy white nodular rock 
weathering into thin irregular courses 
marked by seams of greenish grey marl 
A massive course of smooth very hard white 
rock marked with greenish grey veins - 
f Buffish grey marly chalk, in platy layers - 
Pale buff grey marly chalk, almost massive - 
in bedding, passing rapidly at its base to 
white chalk. 
vWhite firm chalk - - - - seen for 
© 
© 
-©* 
ft. 
4 
35 
6 
0 
11 
8 
o 
3 
1 
9 
50 
in. 
0 
0 
0 
6 
0 
0 
9 
0 
0 
0 
0 
130 3 
The Mel bourn Rock is also seen at the top of the quarry at the 
old Dorking Lime Works, in the Milton Court chalk-pit about 
a mile farther west, and in several small quarries between this 
and Gomshall. 
About a mile west of Sliere, along the main road towards Guild¬ 
ford, it is seen again in a small roadside quarry, and it is also shown 
in two quarries about 300 yards south of the road half a mile and 
one mile respectively nearer Guildford. 
West of Guildford the Rock is seen in a small quarry 200 yards 
north of Down Farm, and again in one or two disused pits 
north of Seale. 
In the upper pit at the Victory quarries, three miles east of Farn- 
ham, the top of the Melbourn Rock and some of Rhynchonella 
Cuvieri zone is well shown. This quarry exposes neatly all the 
Middle Chalk, but the high dip and the irregular way in which it is 
worked makes it difficult to obtain satisfactory measurements. 
