48 
THE CRETACEOUS ROCKS OF BRITAIN. 
The numbers prefixed indicate the probable correlation with the 
beds of the coast section. The layer of nodules occurs at the same 
horizon as Bed 7 on the coast, but the nodules more resemble 
those which occur at Litlington, in Cambridgeshire, at about the 
same horizon (see p. 199). There is a small pit one-third of a 
mile north-east of Harrietsham, near St. John the Baptist’s 
Church, which shows 15 feet of soft grey marly chalk; the 
rock is much broken up, and is merely rubble. A fragment of 
Ammonites [Acanthoceras] rotomagensis occurred in it. 
The summit of the Lower Chalk is seen about 300 yards south 
of All Saints’ Church, Boughton Court. The section seen in 
1890 was as follows : — 
Ahlbo uni 
Rock. 
Bed 9. 
Belemnite 
Marl. 
Bed 8. 
ft. in. 
Soil and rubble ------ 2 0 
(Hard cream-coloured nodular rock, much 
I broken -------- 5 0 
l A course of smooth white hard rock 1 ft. to 0 9 
I Bed of grey laminated marl with Act. plenus- 0 6 
I Hardish white smooth chalk - - 1 ft. to 1 3 
Grey laminated marl - - - - - 0 9 
Grey marly chalk - - - - - 2 0 
passing down to 
Firm greyish-white chalk - seen for 14 ft. to 16 0 
A similar section was seen at the excavation for rifle-butts about 
half a mile north of Greenwav Court and three-quarters of a mile 
E.S.E. of Hollingbourne. Details of the stratification at this horizon. 
however, vary at different points— e.g., at a small roadside quarry 
just north of the guidepost at the cross roads near Cobham Farm 
1\ mile N.N.E. of Boarsted the section below the soil was: — 
Mel bourn 
Rock. 
Bed 9. 
Bed 8. 
j j Hard white rough chalk, rather broken - 
(Grey laminated marl, with discontinuous lenticular 
' beds of hard white smooth chalk —Actinocamax 
| plenus. Rhynch. plicatilis - - - - - 2 
| Firm greyish marly chalk, passing down to greyish- 
\ white blocky chalk - - - - - - - 14 
ft. in. 
4 0 
0 
0 
It will be seen that the Belemnite marls are not so well 
developed here as at most other places. 
The top of the Lower Chalk with the Belemnite marl is exposed 
again in the lane leading to Boarley. 
The large pits at the upper part of the Valley of the Medway, 
between Aylesford and Wouldham on the light bank, and in the 
neighbourhood of Hailing on the left bank, all show good sections 
of the upper part of the Lower Chalk. The details vary but little. 
We select the two which give the clearest sections. 
That of Wouldham Hall quarry, belonging to Messrs. Peters and 
Co., is as follows: — 
