448 THE CRETACEOUS ROCKS OF BRITAIN. 
the same distance from the summit of the zone, and that the lower 
layer of marly chalk is at about the same distance below it, but 
that the latter is much further up from the base of the zone (nearly 
58 feet), while a third marly layer comes in about 20 feet from the 
base. 
The lower part of this zone is Mr. Meyer’s Bed 18, and his Bed 
19, described as “ hard chalk without flints,” is doubtless the band 
of nearly flintless chalk which occurs about the middle of the zone. 
The higher beds were not distinguished by Mr. Meyer, who 
classed them together as Bed 20, “ white chalk with numerous 
flints.” 
West of the fine cliff below the Southerndown coastguard station 
the course of the Terebratulina chalk can be followed by the eye in 
the upper part of the Hooken cliffs, and the base of this zone can be 
seen to overlap the rough nodular chalk of the underlying Rhynch. 
Cuvieri zone and to rest on a grey bed which looks like sandstone. 
Then the lowest beds of the Terebratulina zone begin to disappear, 
till a conspicuous bed of flintless chalk, with a visible layer of flints 
below, comes down to the junction-plane. This is probably the 2J-foot 
bed of greyish chalk which occurs about 20 feet above the base in 
the last section. Beyond, the overlying chalk with scattered flints 
rests on an eroded surface of the basal portion of the fossiliferous 
Cenomanian grit, as described on p. 137 ; so that, as compared 
with the section near the Coastguard House, 80 feet of rock are 
here missing. 
Crossing Branscombe Mouth and walking westward to Berr} 
cliff, over a mile from the Coastguard Station, we find the lower 
beds of the Terebratulina zone come in again (see p. 443), though 
covered and deeply trenched by hollows filled with gravel and 
clay with flints. It consists of soft white chalk with frequent flints, 
both scattered and in layers, but in no place is more than 30 feet 
exposed. Mr. Bhodes obtained a few fossils. 
Beyond this cliff no chalk higher than the zone of Rhynch . Cuvieri 
has been seen. 
List of Fossils from the Middle Chalk 
of Devonshire. 
The late Mr. Meyer kindly sent me a revised list of the fossils in 
his collection, which he obtained from the zone of Rh. Cuvieri (his 
beds 14, 15, 16, 17), with the localities from which they came ; to 
this I have added a few other species found by myself or Mi*. 
Bhodes. Dr. Bo we has kindly sent me lists of the fossils found 
by him in 1898, and these I have entered separately with the 
mark “x.” The Beer Stone is included in Bed 15. 
The localities are indicated thus 
a. West of the Axe mouth. 
b. At and near Beer. 
c. Beer Head and Hooken. 
d. Branscombe Cliffs. 
