Foraminifera of the Gault of Folkestone. By F. Chapman. 569 
residuum of 7 per cent., which is composed mainly of glauconite and 
shell fragments. The fine washings consist of glauconite, a few 
Inoceramus prisms, shell fragments, many casts of Anomalina, a few 
angular grains of quartz, and the following Foraminifera : — Lagena 
hispida Ess., one specimen ; Globigerina cretacea d’Orb., very 
common ; and Anomalina ammonoides Ess., very common. 
Zone VII. “ Dark Bed.” A dark-green clay, with a residuum 
of 6f per cent, after washing, consisting of sandy material with 
iridescent shell-fragments. The microzoa are fairly common ; Rotalia 
spinulifera Ess. is excessively abundant ; spines of Hemiaster and 
arm -joints of Pentacrinus also occur. The fine material consists of 
glauconite, a few angular quartz-grains, Inoceramus prisms, a very 
few granular casts of Anomalina, and the following Foraminifera : — 
Nodosaria simplex Silvestri, one specimen ; Globigerina cretacea 
d’Orb., frequent ; and Anomalina ammonoides Ess. sp., frequent. 
Zone VIII. “ Junction-bed ” or “ Nodule-bed.” A pale-grey 
clay with an even texture. A residuum after washing of 4f per 
cent., of a dark colour, with a few shell fragments and spines of 
Hemiaster. The microzoa are common, with Rotalia spinulifera 
Ess. extremely common. The fine washings consist of glauconite, a 
few angular quartz-grains, prisms of Inoceramus, and the following 
Foraminifera : — Globigerina cretacea d’Orb., frequent; and Anoma- 
lina ammonoides Ess. sp., frequent. The granular casts of Ano- 
malina are absent from this zone. 
Zone IX. At 65 ft. below the top of the Gault. A somewhat 
dark blue-grey clay, with a residuum of 2J per cent, after washing. 
The washed material is of a grey colour, and contains many shell 
particles and spines of Hemiaster. Microzoa are common ; the 
Bulimines very common. The fine washings contain an abundance of 
granular casts of Anomalina, a large quantity of Inoceramus prisms, 
many glauconite grains, and a very few angular grains of quartz ; 
Textularia pygmsea Ess., one specimen ; Bolivina textularioides 
Ess., frequent; Nodosaria Jonesi Ess., one specimen; Globigerina 
cretacea d’Orb., very common ; and Anomalina ammonoides Ess. sp., 
very common. 
Zone X. “ Plicatula-bed.” One foot in thickness, and 60 ft. 
from the top of the Gault. The clay is of a pale greenish-grey with 
shelly particles scattered throughout. The residuum after washing is 
8J per cent., and consists almost entirely of shelly material, with two 
shark’s teeth and joints of the stems and arms of Pentacrinus. The 
microzoa are very abundant. The fine washings consist of numerous 
Inoceramus prisms, some glauconite, granular casts of Anomalina, 
angular grains of quartz, which are scarce, and the following 
Foraminifera : — Textularia pygmsea Ess., rare ; Bolivina textu- 
larioides Ess., rare ; Bulimina sp., one specimen ; Cristellaria sp., 
one specimen ; Globigerina cretacea d’Orb., common ; and Anomalina 
ammonoides Ess. sp., very common. 
