28'J; THE GEOLOGIST. 
at this spot is somewliat singular, no flinty chalk occurring at a less 
distance than six miles to the north or east, and the gTey chalk rising 
between that member of the Cretaceous gToup and the " bone- 
deposit," and forming the highest ground of the whole district. 
The calcareous marl would appear to have been derived chiefly 
fi'om the waste of the chalk, the marl possessing all the usual mineral 
characters of such sediments ; a microscopic investigation con- 
firms this view, the marl abounding with Foraminifera and other 
microscopic organisms, many forms of which are immediately recog- 
nized as ordinary species of the chalk. 
The following are the cretaceous fossils which have been detected 
in it : — 
Torcbratiila rigida. Single cells, ovoidal and globiila, = Oo- 
VemeuiUna tricai'iiiata. linao (?) aud iiortious of other Forami- 
Textularia globosa, trochus, and others. nifera. 
Polymorphina (?). Pi-istnatic fragments of Inoceramus. 
Enlimma variabilis and another. Fragments of Echinodermata. 
Kosalina. Ossicles of Apiocrinites. 
Globigerina cretacea. Valves of Cytherella ovata and C. trun- 
Cristcllaria rotulata and another. cata. 
Rotalia globosa. Bairdia subdeltoidea and B. Har- 
Nodosaria. risiana. 
Cjiihere HOseana. 
LIST OF THE ORGANIC REMAINS FROM THE « BONE BED." 
Mammalia. Megaoeros Hibernicus. 
Elephas primigenius. Equus. 
Hippopotamu.s major. Hysena spelaea. 
Rhinoceros hemitcEchus. Ursus ?. 
Bos pi-imigenius. Shells. 
urus. HeHx nemoralis. 
longifrons. concinna. 
Cervus elephiis. 
We have now fairly got back to Folkestone, and if we make the 
best of our way towards Copt Point, through London-street, we shall 
pass a good examj)le of the superficial brick-earth spreading over 
gault and green-sand. I point out this section as, although limited 
in extent, the- little patch of gault there exposed is rather rich in that 
very elegant and somewhat rare ammonite, A. Bouchardianus. 
(To he continued.) 
