It is
evident of course that these two--pipes can be placed on the same side of
the apparatus, if this prove the most convenient arrangement.
We will add that this apparatus can be applied not only to the Liernur
system, but also can be used for preventing the entrance of obstructions
into sewers of the ordinary type, where the grade is small or where the
quantity of water is insufficient; and if we adopt the system of
"everything to the sewer," can we not find in the employment of this
apparatus an element for the realization of the famous formula, "Always in
circulation, and never in stagnation?"--_Le Genie Civil._
* * * * *
[Concluded from SUPPLEMENT No. 454, page 7249.]
WATER-POWER WITH HIGH PRESSURES AND WROUGHT-IRON WATER-PIPE.
By HAMILTON SMITH, JR., M. Am. Soc. C.E.
METHODS OF CONDUCTING WATER AND TRANSMITTING POWER.
A description of the mode of using water-power for driving the North
Bloomfield tunnel in California, some years since, will give a good
illustration of some of the advantages of the hurdy-gurdy. This tunnel was
originally about 8,000 feet long, through a slate highly metamorphosed,
with its general line passing under a good-sized stream, at a depth of
about 190 feet.
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