Evening star. [volume] (Washington, D.C.) 1854-1972, 1889-03-27

had become ioosened. In some cases rock had
fallen and crushed these timber caps. Lag
ging had also been set i'm
In reply to further questions, he said that he
had included the side walls as containing good
or bad hubble masonry. If openings had been
made at all the points where soundings were
made he thought that
THE RESULT WOULD HAVE BEEN LESS FAVORABLE.
He did not make openings at every point where
the rod sounded TO hollow space beyond. II
would take one man now about $50 DAYS to cor
rect the faults in the work which 1t would have
taken one man 80 days to do, as
a Ths aresss osS, This f.. laid nu sSd
in the New York aqueduct was about 50 feet
long, with an average width Of 5 feet. The
system OF inspection there, as the work pro-
crossed, was nearly similar to that used on the
Washington aqueduct In the $50 feet hole,
the largest cavity here, there was no place
where the bulk-heads were more than IA feet
apart. A man will lay from 21S to So cubic
yards OF good rubble masonry in a day, averag-
ing about yards.
Col. Robert asked if the witness could
This
MR.. SPARROW DID NOT WANT TO SAY.
There could have been sufficient force put on
to one OF the bad places to build one dummy
wall in one day. It could not have been finished
In half an hour, he replied to one of the officers,
nor could piece of work be thrown up to con-
ceai the bad work in that time in the larger
cases: In some of the instances one man could,
In half an hour, have easily thrown up wall to
conceal the cavity. The case depended ON the
size OF the clearance to be filed with the wall
Mr.. SWIFT TAXES THE WITNESS AGAIN.
At IL o'clock Mr.. Swift returned to the charge
to clear his ideas as to where the holes were
cut. Mr.. Sparrow said that if the brick lining
could be taken down and the whole length Of
the lining seen the general aspect would be
much more 'unfavorable to the work" He
had heard Of much larger cavities in the New
spoken.
"Do you not know Of place where they took
out 2. 900 empty cement barrels?'
Il have read in the papers of one hole where
they removed Thousand cement barrels" cor
rected MIR. Sparrow, to the amusement of the
court.
Mr.. Sparrow was then excused, and the pros
ecution called
THOMAS B. MAIN,
who said that he had been employed by the
Congressional investigation committee in the
Washington aqueduct as an expert engineer.
Mr.. Sparrow was associated with him in the
work, he ordering the openings in the roof to
be cut. Main made the measurements of the
cavities developed with the aid of an assistant
and laborer: The record of the measure
ments was made by his assistant. He entered
all OF the openings in which it was possible to
crawl. In his opinion the brick work was fair
to the eye. but the packing was generally bad.
He had not been familiar with the speciica-
tions, but understood that in the general length
Of the tunnel rubble maso nry was to be called
for as packing. In his opinion the work did
not come up to these requirements
In reply to MIR. Swift the witness stated that
his measurements Of the holes were mostly esti-
mates; the lengths are the extreme lengths
Lieut.. Col. Flagler asked what portion of the
space between the arch and the rock above
was filled in by the workmen.
The witness said that he would not care to
guess at that. He had made an estimate on
the amount required to fill these openings, but
did not remember the figure.
At twenty minutes after IL the witness was
excused and recess was taken until O'Clock.