PROCEEDINGS OF THE SECTIONS, 365 
These slops contain ingredients which pollute the air almost 
equally with focal refuse, and if allowed to run without filtration 
in the street gutters, present a most objectionably slovenly appear- 
ance as well as being offensive to the nostrils. 
While therefore other schemes of sanitation are more or less 
effectual in providing for the disposal of the fecal refuse of a 
dwelling, not one of them shows a practical way of dealing with 
ordinary slops. 
e water-carriage system—that is, a system of brick and stone- 
ware drains laid deeply underground—receives indifferently either 
and all such sewage, as well a proportion of the rainfall, atfording 
to householders and manufacturers a ready and inoffensive means 
of getting rid of their waste fluids. 
It is true, as hereinbefore stated, that deleterious gases are given 
off by sewage ; but under the head of “Ventilation ” this objection 
is rendered harmless. 
For the above reasons, and the almost universal testimony of 
sanitarians, this paper assumes that the water-carriage system is 
the best. 
It is scarcely necessary to enter into any minute description ‘of 
a water-carriage system of sewers, it being fully known that it 
consists of underground condu:ts of brick, stone, concrete, eartnen- 
ware, stoneware pipes, &c., laid with proper fall towards the out- 
fall, laid also so that they may be accessible in the event of stop- 
page at frequent points for inspection and repairs, and having 
appliances and the usual accessories, much of the character of the 
drain either into the Harbour, Botany Bay, or into the Parr amatta 
River or some branch thereof, and an Act of Parliament specifically 
forbids the discharging of fecal matter into any of the above waters. 
contemplated by this paper includes 
that obtains in the inland counties of England. The R 
Instead of discharging the raw a cineca a 
inlet, it is made to flow into capaciou ee i 
reservoirs, wherein it is treated chemically, so that : aoe se 
solid constituents on the bottom, and the effluent is drawn of a 
