138 C. J. McMASTER. 
I wish to express my thanks to Dr. Mailler Kendall, the 
Medical Officer of the Water and Sewerage Board, and to 
Col. Holmes the Secretary, for their assistance and for 
giving me access to books and documents in their custody, 
also to the Government Statists of Victoria, Queensland, 
South Australia, and New Zealand, and Mr. Henderson 
City Surveyor of Nelson, New Zealand, for supplying me 
with a large number of statistics ; I also wish to acknow- 
ledge my indebtedness to Mr. Coghlan’s Statistics of New 
South Wales, the minutes of the proceedings of the Insti- 
tution of Civil Hngineers, the proceedings of the Sanitary 
Institution of Great Britain, and the Engineer, and many 
other journals, for without their valuable assistance I would 
have been unable to compile this paper. 
SAND-DRIFT PROBLEM or ARID N. S. WALKS. 
By Cotin J. MCMASTER, 
(Chief Commissioner of Western Lands) 
[With Plate X.] 
[Read before the Royal Society of N. S. Wales, August 5, 1903. | 
Mr. MAIDEN in his valuable paper on the “ Sand-drift 
Problem of New South Wales,’’ read before this Society ~ 
Jast month, indicated that sand encroachments from the 
sea can be controlled, but up to the present time no recorded 
attempt appears to have been made to deal with what may 
be considered the more important question of the moving 
sands of the extreme western parts of New South Wales, 
which in this respect may be regarded as typical of Western 
‘Queensland and generally of Central Australia. — 
—— ee 
