THE GEELONG NATURALIST. 3/6) 
The first outcrop I wish to draw attention to, with which 
no doubt many of you are already familiar, is that along 
the Eastern, Beach of Corio Bay, a portion of which is well 
known as Limeburner’s Point. There is no need for me to 
enter into statistics as to the commercial value of this deposit 
to the local limeburners, the great length of time it has been 
used amply testifying that it has been by no means inconsid- 
erable. The limestone is, for the most part, greyish in colour, 
being variable in texture, from loose incoherent portions, to 
a very fine, compact, and homogenous rock. An analysis of 
specimens from this locality made by the officers of the first 
geological survey of the Colony may not be devoid of interest, 
and is as follows :— 
Carbonate of Lime oc ag .. 89°50 A 
Carbonate of Magnesia .. T a. 043 
Carbonate of Iron e 5 sy OY 
Silica and Clay .. m 3n .. 6°84 
97:49 
From a mineralogical point of view, this deposit is worth 
visiting, as cavities lined with very beautiful crystals of 
calcite are frequently met with in the rock. I have also 
seen some good examples of dendritic markings, and no 
doubt a patient search would be rewarded by good specimens 
of other kinds as well. For the fossil collector there may not 
appear to be much at first sight, but let me enumerate some 
of the things which have already been got from these Quarries, 
and I think it will be found that considerable interest attaches 
to them. 1 
First, then, let us glance at the mammals. The palate 
and molar teeth of both sides of Diprotodon longiceps, 
"McCoy. is recorded as found by Dr. Day and Mr. Mercer, 
and may be seen in the National Museum, Melbourne. 
It is, however, not unlikely that other portions of this creature 
have been discovered but not recorded. 
The Diprotodon was at one time regarded by some eminent 
authorities as a gigantic precursor of our little Native Bear 
(Phascolarctos ), and in some text-books affinities in structure 
with the Kangaroos (Macropus) are pointed out. However, 
since the discovery of the enormous number of skeletons of 
this creature at Lake Mulligan in South Australia, certain 
missing bones of importance have been obtained, and Mr. De 
Vis, Curator of the Brisbane Museum, Queensland, one of 
our authorities on extinct mammals, asserted at the Adelaide 
meeting of the Australasian Association, that he regarded the 
affinities of Diprotodon to be rather with the Wombats 
( Phascolomys). A 
So far as the teeth go, the resemblance to the Kangaroo 
is somewhat striking, but here the resemblance ceases, the 
other bones, and particularly those of the hind foot, being 
essentially the same as in the Wombat. 
