292 PROCEEDINGS OF THE GEOLOGICAL SOCIETY. [Feb. 9, 
“ From Moonlight Head to the mouth of the Gellibrand river a 
very peculiar suite of beds occur. The fossils they contain are evi- 
dently Miocene; but, with the exception of being very similar in 
composition to the leaf-bed occurring between the Aire river and 
Castle Cove, and also to the beds composing the cliffs about a mile 
east of Point Addis, they appear to have no equivalents on any 
other portion of the coast. About a quarter of a mile east of the 
mouth of the Gellibrand, these beds terminate abruptly, with Plio- 
cene Tertiary resting on and against them. From this point they 
gradually rise to the eastward, at an angle of about 10°, for about 
two and a half miles, when they rest horizontally, or nearly so, on 
the Mesozoic sandstones ; thence they continue, with sight undula- 
tions, along the coast to the east. The following section, shown in 
the cliffs from near the Gellibrand river for about two and a half 
miles eastward, will, I think, give approximately the thickness of 
these beds. 
« Commencing at sea-level we have :—(1st) 45 feet greyish-brown 
Carbonaceous sandstone, showing false bedding, and containing hard 
concretionary nodules and fragments of carbonized wood; (2nd) 50 
feet of thin ferruginous sandy beds, with small rounded quartz 
pebbles, the uppermost beds containing fossils, principally Cucullea, 
Cytherea, and Nautilus, labelled No. 6; (8rd) 125 feet of nearly black 
argillaceous beds, containing a few rounded quartz pebbles sparingly 
interspersed. Crevices in these beds contain the same yellow basic sul- 
phate of iron previously mentioned. In the middle portion of these 
beds a few fossils are found, chiefly a species of Petraia, numbers 
of a small Turritella, aggregated in patches, and a few sharks’ teeth, 
labelled No. 7. [The Petraca above mentioned is Trochocyathus me- 
ridionalis, Duncan, which is accompanied by Trochocyathus Victoria 
and Cycloseris tenuis, Duncan.| These fossils occur chiefly in a very 
hard stratum, the hardness of which alone distinguishes it from the 
softer beds of similar colour with which itis interstratified. (4th) 35 
feet of yellow and red ferruginous sandy strata without fossils ; (5th) 
AO feet of black beds similar to those just described, with the exception 
that they apparently contain no fossil shells; but wherever you 
examine them, numerous small branching markings, like Alge, are 
found. Specimens obtained, labelled No. 8. The same is observed 
in all the black beds of this section ; also in those between the Aire 
river and Castle Cove, and in the strata before referred to, about a 
mile east of Point Addis. Above this we get white, yellow, and 
red sandy clay, passing up into rounded quartz-pebble drift, pro- 
bably Pliocene, together about 50 feet. Total thickness from (1st) 
to (Sth) inclusive, about 250 feet. West of the Gellibrand the 
miocene strata are of an entirely different character, and occupy a 
very wide area. They occur in the cliffs along the coast for nearly 
forty miles, and extend north nearly to Camperdown, where they 
pass under the basalt. For thirty chains from the mouth of the 
Gellibrand the cliffs are entirely composed of Postpliocene tertiary 
sandstone; the Miocene beds dipping to the east then commence. 
A section ten chains further along the coast gives, above sea-level :-— 
