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united ; the Foraminifera are not common. There are also numerous 
spines of FTemiaster. The fine washings consist almost entirely of 
glauconite, with a few grains of quartz ; Glohigerina cretacea d’Orb. 
frequent. 
Zone III., “ Crah Bed.” The clay is of a pale brown or fawn 
colour, fine in texture, but not close. Residuum 5 per cent., of pale 
brown dusty sand with occasional shell fragments. There are also 
spines of Hemiaster. The specimens of Glohigerina in this bed are 
of a whitish and weathered colour differing from those of other beds, 
where they are dark with a metallic lustre due to the infilling of 
their shells with pyrites. The F oraminifera are fairly common, and the 
Ostracoda are very abundant ; the valves of the latter are often united. 
The fine washings contain a large proportion of tiny brown granular 
spherules, a little glauconite, occasional angular grains of quartz, and 
prisms of Inoceramus. The little brown spheroidal bodies are com- 
posed of carbonate of iron and appear to be casts of Anomalina, as a 
series may be made out, graduating from the infilled shell of the 
Foraminifer to the roughly spherical cast with its iron-stained 
umbilical depression. The fine washings on analysis yield 26*61 per 
cent, of metallic iron in the state of ferrous oxide. The following 
Foraminifera occur in these washings: — Textularia pygmsea Rss., 
common ; Bolivina textularioides Rss., common ; Globigerina cretacea 
d’Orb., very common ; and Anomalina ammonoides Rss. sp., very 
common. 
Zone IV. A daih green clay, very fossiliferous. The washed 
material consists of a brown shelly sand, If per cent, of the whole, 
with spines of Hemiaster. The Foraminifera are tolerably abundant 
and very small. The fine washings consist of glauconite, angular 
grains of quartz, and innumerable prisms of Inoceramus ; also casts 
of Anomalina like those found in Zone III., though here very rare. 
The following Foraminifera occur in the washings: — Lagenalsevis 
Montagu sp., one specimen ; Glohigerina cretacea d’Orb., frequent ; 
and Anomalina ammonoides Rss. sp., frequent. 
Zone V. “ Coral Bed.” A grey-blue clay. The residuum con- 
sists of 4J per cent, of somewhat sandy material, with a few shell 
fragments. The Foraminifera are very abundant; and the larger 
specimens are frequently filled with pyrites. Ostracoda are common. 
The fine washings consist of glauconite with numerous distinct casts 
of Foraminifera, a few angular grains of quartz, Inoceramus prisms, 
and numerous casts (in carbonate of iron) of Anomalina ; also 
Textularia pygm sea Rss., frequent ; Bolivina textularioides Rss., rare ; 
Glohigerina cretacea d’Orb., common ; and Anomalina ammonoides 
Rss. sp., common. 
Zone VI. “ Mottled Bed.” A blue-grey clay with dark-greenish 
spots and streaks ; some of these markings are surrounded by rings of 
pyritous stain. The microzoa are very abundant, and Botalia spinu- 
lifera Rss., is the commonest Foraminifer. The washed clay gives a 
