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the coast. If so, they can only occur close to or below sea level, 
and not, as indicated on the sketch map, on the top of the cliffs, 
which are 200 feet high, and show Post-Pliocene or recent rocks 
from base to summit. 
The only undoubted Tertiary outcrop seen by us at the Aire 
was that just referred to, which is an Eocene outlier of poly- 
zoal limestone abutting against Mesozoic rock. Waldhevmia 
Garibaldiana, Pecten Foulcheri and a cast of Voluta Mortoni 
were observed. Other outliers are shown on the map, viz., at 
Fischer’s Point, and on the east side of the Aire, but as our time 
was limited we did not visit them, and no fossils have been 
recorded from either. 
GENERAL. 
Since the publication of Part I. of this “ Correlation,” an im- 
portant paper on “The Sequence of the Eocene Rocks of Vic- 
toria,” has been contributed by Messrs. Hall & Pritchard.* At 
Maude, as is well known, Tertiary deposits occur both above and 
below a layer of basalt, which has been described by the Survey 
as a subsequent intercalation, but this reading is disputed in the 
article referred to. The inferior of the two deposits is next 
correlated with the Spring Creek Section, which from its slightly 
lower percentage of recent species they assign to a much lower 
horizon of the Eocene than Muddy Creek, Schnapper Point, and 
certain other Tertiary outcrops. 
For their calculations upon the Muddy Creek mollusca they 
rely partly upon a list of species published in 1888, and partly 
upon the figures given in Part I. of this “Correlation” in 1893, 
but some extensive researches made personally in January of 
this year enable us to correct the quoted figures, and supply the 
latest data. The shells recently gathered are not yet completly 
sorted, but, so far, the mollusca proper for the lower zone at 
Muddy Creek show a total of 649 species. Only eight of these, 
and not ten, as stated in the Maude article, are recorded to have 
living representatives, so that the percentage of existing species 
is 1:2, instead of 2, according to Messrs. Hall & Pritchard’s 
calculations. One per cent. of recent species is claimed by the 
authors named for the Spring Creek fauna, which may be accepted 
as approximately correct, but it is obviously unwise to attempt a 
classification of Tertiary strata on a difference of less than a half 
per cent., or even, indeed, on 1 per cent. of existing forms. 
Should an alleged living representative be discredited, or a single 
fresh recent species be recorded, the percentage would be sub- 
stantially altered. Muddy Creek, with its extremely rich fauna, 
would not be so much affected, but a moderately prolific bed like 
*<«The Older Tertiaries of Maude,” &c., Proc. Roy. Soc. Vic., 1895, 
