PROCEEDINGS OF THE SECTIONS, 343 
the most notable authorities that it is an effectual oxidizer of 
iti t of these 
sewers are now being constructed in conformity therewith by the 
Sewers Department. 
sewers would receive the wind at their mouths when the tide was 
low, and this would exert a pressure internally tending to drive 
fact that sewer gas forms rapidly in large volumes in this warm 
climate in summer, made me conclude that, no matter how frequent 
these gratings were spaced, there would always flow out of them 
channel with a continuous grating would be still i 
it difficult to believe that this would be the result, remembering 
