131
the deep water areas, obtunet from the latest published, charts, and by brown colour the
cvelditional crew of deep water shown on the first published chearts of the survey of 18411, the
better crece representing the alleged loss diving the interval. Chart Eshows the xwerage
loso
of lepth, over small areas in various parks of the Harbour since the survey of 1841.
ar. purison of 7.
Charlo.
tue
Mr. Boulter's propozcals for extensive dredying operations ure shown on Chart I f7. The cells
yution of Billing and the cissumed loss of deep water used thereby, are based, as previously mentioned, on a comparison of the published Clatenvretty Charts of different dates, the first series of soundings thus kiken being those of the survey of 18411. Through the
courtesy of the Xystrographer to the Nowy, hewe hand exportnike's of obsteuning information from his Departmenteund from himself, direct,
relative to the questions, reused in Mr. Boulton's Report . We brewve sestrificct ourselves, us a result of these conferences, that it is impracticable to Set refemy
reliable basis of comparison with regared to the depths in the Herrbour of Hong. Hongprior to those shown on Charts hot 1459, 3279, 3280 coral 3429, respectively. The Boundings on these four bust numed churks were mostly tukenbetween 1886 und 1902.
124 comparing the soundings shown on these