68 
derived from the Ordovician rocks and the pebbles of slate were also 
derived from that source, while the serpentine furnished the material that 
forms the great bulk of these sedimentary beds. The serpentine rock on 
what was the old surface is less compact and far more shattered than at 
a few feet lower down. The sedimentary beds now stand at an angle 
of 80 deg. to 85 deg. to> the horizon, although they must have been laid down 
horizontally. This implies that great earth movements have taken place, 
tilting up not only the sedimentary beds, but also the serpentine rock and 
it is doubtless owing to this cause that the serpentine outcrop is exposed. 
At Roan Horse Gully an exposure of grey limestone occurs with 
numerous fossils determined to be Platysirophia biforata , by Mr. F. 
Chapman, A.L.S., of the National Museum. It appears to be resting 
on the serpentine. It may belong to the series of beds exposed 
at the junction of Thiele’s Creek and Dolodrook Creek where 
there is another limestone outcrop. A third outcrop occurs a few 
chains above the junction of Black Soil Gully with Dolodrook Creek, 
on the west side of the latter creek. These limestone outcrops all appear 
to be of the same age and the last mentioned is said to be traceable at 
intervals for a mile in a south-west direction. Eventually this limestone 
should prove of great value for building purposes and also for fertilizing 
the land. 
A few chains up Black Soil Gully above its junction with Dolodrook 
Creek a band of red and grey jaspery rocks crosses the gully. Similar 
rocks are exposed at Garvey’s hut where we camped. The relation of these 
beds to the Graptolite bearing black slates has to be worked out. 
A thin deposit of well rounded pebbles occurs on the serpentine on the 
south bank of Dolodrook Creek and at a considerable height above it. A 
few chains west of the corundum locality and high up on the hills, a well 
rounded wash occurs, the pebbles formed of serpentine. A shallow hole 
has been sunk into this. In Dolodrook Creek, near the hut, there is a 
conglomerate in which small nearly spherical pebbles of serpentine are 
bound together with serpentine material; the pebbles and boulders are 
derived from the conglomerate as shown in this section. 
Mr. Thiele has done some excellent work in exploring this out of the 
way locality, and he has embodied the results in three papers published 
Dv the Field Naturalists’ Society. 
\Report sent in 2.10.07.'] 
NOTES ON THE COUNTRY BETWEEN BAIRNSDALE AND 
BENDOC, GIPPSLAND. 
By E. \ Dunn , F.G.S ., Director , Geological Survey. 
Bairnsdale is situate on Tertiary deposits of doubtful age. On the 
surface westward from the town coarse gravel deposits are abundantly 
present and are utilized in forming the roads. These gravel beds and beds 
of sand, &c., extend round McLeod’s Morass on the west side and are w r ell 
shown at Eagle Point. Beds of impure limestone containing abundant 
remains of marine fauna crop out on the road w r est of Bairnsdale. A great 
deal of marly material occurs with the limestone and this should form a 
