, 1879-02-23

way-stations. to whom the police authorities ~
| Ibis city mav.tele graph to search trains fror,
luche: iaon which iu2itiVes FROM justice NAV na
| supposed to be on bOaft.s
| sDecial Dispatch to The Tribune
!, TORONTO, Ont, Feb. 22.-Thc Special Par,,.
Hentary Committee to whom the petition ~
| tie Huron-Ss Ontario SLip-C Canal Compauy VS. ~
| referred, met, and heard Mr.. Frank Turner. =,
| works of what Is kuown as the II hydraulic ltf;-
| lods,'' invented By Mr.. E. Clark, one Of rhe
| engineers who were engaged in tile coastrnr-
tion Of The Menai, Bridge. The only lock OF
| Weaver, at Anderton, in Cheshire, England:
! but there, according TO Mr.. Turner, It has,
| beer perfect SUCCESS. During the three years
| it has been in operation 1t has cost nothing for
$50 5argcs pcr day. The cost Of the lock wa
| 100000; but this includes an extension ren.
derci necessary by the Intervention OF the r1yer.
| and, moreover, It was oulls At a time when thn
price Of iron WAS at the highest point it has been
| at for many years The working expense i
| unaided. It is adapted for vessels OF 800 tons.
and is so constructed that one barge ascent.
while the other descends; the lock nav, how
! ever, be constructed single as we'll Us double, ac-
any capacity bv the addition Of more hydraulic
power. Although there is only one lock in use
on this principle as yet, the principle nas
been applied to docks. and will probably SOON be-
utilized for the improvement Of the navigation
of tic :Yolga. 1t is impossible to conve; anv
|: ADEQUATE idea OF the mode Of working OF thu
1it-docl without referring to plans or models
but it may be stated that the hight through
which vessels are raised by it Is fifty feet The
vessel to be raised OR lowered Is kept aaoat
iduri.ly the ascent or descent, in an iron trough
which is really portion of the bed OF the canal
In tue double lock the upper trough is supplied
with greater amount Of water than the lower
one, and the former consequently descend,.
The force IS rendered stronger By means OF
wafer accumulated in tank attached TO the
system III sucn way that its contents can be-
scd for forcing down one trou!l, and iu ths
way forcing u o tho other.
App!yii,:. his explanation to the case Of the
Huron s. Ontario Canal, Mr.. Turner called at-
tn. hight OF land would have to lie seyeaor
eight miles long aud l01 feet deep ut the deep
Us; part: that rhc enormous amount of excays-
tiou required would make it extremely difficult
to dispose of the earth taken out Of the canal:
and that the depth AMI width Of the cut would
entail a great cost .fsr bridging, 1t was i.npos-
si:,Ic without a survey to say precisely how much
of the excavation could be lisuenscd with, out.
by the use OF the hydraulic ltft-lock, the tirst
ct,st OF tho canal would probably be reduced from
S 000 900, the original estimate, to onc-hafo
that amount, while there would be a saving Of
time in passing through to the extent Of oDe-
third. Id the case OF this canal the hight OF the
Hits would be about seyenty-flve feet, and il
the money were ready 10 20 11Tourl VITA the
work, the undertaking could be completed
within five years. Twelve lift-lo"ks would sui.
flee, while fifty would he required on the old
plan. By the ltlt-lock system there is little
waste of water. except by evaporation, at-
*tcen-inch pipe from some perennial sonyce being
sufficient to supply ali that was needed altel
the cana: was once full It was quite likely
that the necessary water could be procured
from the Holland. Don, Credit or Humber
Rivera; Ind reservoirs might bc constructed to
store up water ID through the winter when the
canal WIS not in use. On this plan no water
would require to be taken from Lake Smcoe
a survey sufficiently thorough to furnish the
Information on which to base tenders could be
completed for about $10,00O. !.
4 vote OF thanks was rendered to Mr. Turner
for his cxplanations, and he was requested to
reduce them to wiring for the use OF the Com
1nittce-
After Mr.. Capreo1 had given 4 brief outline Of
the points he would like to have submlttedto
The House, the Committee adjourned, to meet
again at the call Of tie Chairman.
HALIFAX, Feb. 2.-No mails have been re-
ceiVed since Thursday, owing to tue snow block
aac. The drifts in some places arc twenty feet
deep.