fps LAWRENCE HARGRAVE. 
to tunnel under Bellevue Hill from creek at Doubie Bay to 
scrubland at Rose Bay, thence across low land and scattered 
houses to north-east side of Lyne Park, where down grade 
to Vaucluse Tunnel commences: this tunnel begins near 
‘Tivoli’? and ends on the east or west quay of Port 
Sydney. A shaft at Bottle and Glass would hasten the 
work by providing two extra working faces for Vaucluse 
tunnel. The section of the railway shows on an exagger- 
ated scale the tunnel work and grades. 
The section from George’s Head through Sow and Pigs 
beacon to the Military Reserve at South Head is taken 
from the Admiralty Chart. The dotted section on the same 
line shows the dredged levels through the east and west 
channels and the position of Port Sydney therein, and it is 
obvious that the cross section of water is not reduced in 
area but its form improved for scouring purposes. 
A Discussion followed the reading of the above paper in 
which Messrs. G. H. HALLIGAN, R. V. Hopeson, Dr. F. H. 
QUAIFE and Mr. T. H. HOUGHTON took part. 
Mr. HARGRAVE replied as follows:—Mr. HopGson men- 
tioned the great cost of carting goods to and from the 
quays. There is no carting about the job, only six 
miles extra rail transit and the trucks are alongside the 
ships. Some one asked about the cost of the work. I 
have made no estimate, but whatever it is, it will be 
small compared with the advantage of securing the over- 
sea traffic of the continent of Australia. The prize is equally 
within the grasp of the Queenslanders: but their works 
include a standard gauge railway from the South Australian 
boundary to Moreton Bay. Another speaker said the site 
was exposed to attack in case of war. Ido not see that 
a few shells in the concrete would do much damage, nor 
why Port Sydney should draw the fire when our beautiful 
public buildings are within sight and range: besides, 
