30 THE PROBLEM OF ANTIQUITY OF MAN IN AUSTRALIA 
seemingly lived immediately prior to the formation of the post- 
glacial (12-20 ft.) marine terrace. ; 
The bones were in a deposit formed after the river had cut its 
canyon through the Pleistocene anticline previously mentioned. 
All specimens are in the South Australian Museum, Adelaide. 
Devon Downs Human Remains. 
At Devon Downs cliff shelter, occupational detritus, where 
excavated by Hale and Tindale (1928), was about 20 ft. thick and 
divided into twelve layers. The shelter had previously been 
described and figured, but not excavated, by H. L. Sheard ( 1927). 
Human remains were found in the second, third, fourth, sixth, 
and eleventh layers from the surface. None was mineralized. In 
layer 2 were the bones of a young baby; a burial. In layer 3 a 
child of 15 to 18 months old had been buried; the skull was almost 
complete, and most of the other bones were recovered; deciduous 
teeth are all present and are very large. From layer 4 a deep 
grave penetrated layer 5 and part of layer 6; it contained a child’s 
skeleton and an almost complete human lower jaw; the teeth are 
similar to those from layer 3. In layer 6 were the greater part 
of a lower jaw, some teeth, and a few fragments of the calvarium 
of a child about 5 years of age; the jaw and teeth resemble those 
of recent young aborigines of similar age. In layer 11 was a single, 
much-worn crown of a left deciduous incisor; it is large but con- 
siderably worn by attrition. 
Hundreds of artefacts and animal remains were distributed 
throughout the occupational detritus. Bones of Sarco philus, now 
confined to Tasmania, occur in the lower layers. 
The authors believe that the accumulations in Devon Downs 
shelter are younger than the Tartangan strata; that the artefacts 
in successive layers of the well-stratified occupational detritus 
indicate five successive cultural phases; and that faunal modifi- 
cations are possibly due to changes in climate, 
The thickness of stratified detritus and variation in artefacts 
and fauna in successive layers indicate that the shelter was used 
by aborigines for many centuries. 
All specimens are in the South Australian Museum, Adelaide. 
The Keilor Skulls and Bones. 
Two mineralized human skulls and some other bones were found 
in undisturbed ground at a depth of 19 ft. in a terrace adjoining 
the Maribyrnong River and 45 ft. above river level. The sandpit 
where they were found is a mile north of Keilor village, which lies 
10 miles north-west of Melbourne. The sandpit was worked by 
