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By Dr. Jordan.
360.-What is the depth of the Government traps?
A.-I don't know the Government traps. I don't suppose the attention of the Government has ever been drawn to this any more than my own was.
361. You experimented with some of the Government traps did you not?
A. Yes.
362.—What was the depth of the midfeather?
A.-It is level with the outlet.
By the Chairman.
363.--Do you consider the present system defective?
A.-No, provided there is proper ventilation. Sir ROBERT RAWLINSON lays it down that no gully should be trapped until provision is made for ventilating that same gully.
By Dr. Cantlie.
364. Do you think subsoil drainage would be an advantage at West Point?
A.--I feel certain it would in my own mind, I am not speaking as a medical man, but from what I know great number of cases of fever can be put down to malaria owing to the boggy and marshy neighbourhood.
365. Subsoil drainage would cure that?
A. Of course.
366.-Would you require three sewers then, one for subsoil drainage, one for sewage,
and one for storm water?
A.-No.
367.-Two?
A.—No, I would only have one.
368.--- You would have the subsoil drainage, the sewage and the storm water all in one?
A.--The subsoil drainage would not be much and the subsoil and storm waters would have a tendency to scour out and clean the sewers. That is the one great benefit we derive in Hongkong from such heavy rainstorms as we get here.
369.-Do good sewer.
you
think a very big sewer that can accommodate the storm water is a
·
A.It is if the section is properly designed.
370.-What is the best section, egg-shape?
A.-Egg-shape is the best.
371.-Do you think the present section is a good one?
A.—It is not so good as the egg-shape, but it is very expensive to make egg-shaped
sewers in granite.
372.-Is granite a good substance to use?
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