Evening journal., 1901-01-26

Cedar street These new subter-
rauean buildings will provide in
their basement, sub basement, cellar
and sub-cellar-their four stories, in
sther wOrds-hfty-five thousand square
Get OF new fC0r-space At the very
Moderate rental Of two dollars pen
year per square foot here is an in
rement in rental value alcne of mere
han one hundred and ten thousand
lollars a year, which is a handsome
'eturn upon two million dollars. While
his new noOr-space may not be in de-
nand for offices. it will nat
rally be in great demand
'cr the accommodation of the
anormOus machinery plant which. un-
der modern conditions, is necessary TO
he maintenance Of great Office
building The space now utilized for
his machinery win naturally be avail
bic under the new condition for other
md more remuncrative uses. The
-aw underground spaCs will also b.
veil suited to the accommodation Of
.ecord-rComs and safes in which the
lrchiyes OF corporations may be kept
'eyond the remotest reril of fire. So
hat in spite of the expense of sub
obstruction. which is naturally great
IT than that Of building up into the
ir. on account of the cost of the
aisscns and the limited num-
ler of workmen who can
It one time work I'm the caissons. in
be end believe this new under
sround loor-space VIII be found sub
,antially clear gain Certainly the
'1umdations CT the entire structure
which will forever rest en- bedrock
an never be shaken or disturbed by
any other building whatsoever. OF
ven by the construction of railrcad
1nnel One lesson I have learned
rom this matter is the old one Of talk
ng the cherry in one bite: If when
he Mutual Life Building was con-
fructed I'm 1884. of eight stories. there
rad been four other stories below the
urb. their supports resting I'm the
neiss. and If the addition of seventy
wo feet on Cedar street had been
luilt down as well as up in 1893, and
he second addition of one hundrfd
eet on Liberty street had been run
iown through the sands to the ribs
# the world in 1894. as well as fifteen
tories up into the sunshine-ani
uite a tall building it was at that
ime-the excavations which were be
run in the latter part OF March. 1900
or the two additions of fifteen stories
n the air and for the subterraneal
buildings I have described, might
have been brought into being at a fei
'ess expenditure.
The east wall Of the Liberty stree
a.. 4
tories high, is OF solid brick, We gh
ng siXtyhve thousand pounds pei
meal foot or course it is necessar!
or us to support our own building a.
veil as those of our neighbors in ou
underground explorations and disc1V
ries. To support this east wall
vas necessary to sink to bedrock, b.
he pneumatic process, eight GASTRIC.
ylinders each thirty-six inches 81
lametsr. The cylinders were force
own by means of two hydrauli
aczs. each Of about one hundred an
twenty-five tons lifting capacity. Fiy
rcrmous steel beams were the
/ yedged INTO the wall in orifces en-
| or them specially, by proc S
/ which demonstrated the cxtraordinar
| liability and hardness Of the origin5
! construction. and were wedged an
TuOted into place Against thes
lCams tho jacks were worked. an
| he caissons as fast as they wor
| showed down were cleaned ont so ths
| additional sections Of steel. each fl,
Get I'M length. were bolted on to tl
aisson time after time. the sinkin
being continued until bedrock wa
i reached.
The ordinary tenant i'm or visitor
.he towering Office buildings Of dowi
town would no doubt answer. If II
/, question were asked, that the foundi
/, ion could be resting nowhere els
/, than on bedrock. Nothing short
that il would seem could support sue
/, weight The contrary is fact. III
: extensions of the Mutual Life lnsu
( ance Company's building will rest
bedrock and the engineers in char
6 challenge the statement that this ca
I truthfuny be declared of any 9th
4 downtown building A marvel
r mechanical enterprise IS this diggil
4 ont micaceous sand down TO wat
: boring through forty feet of Quic
r sand below watsr, then bcrl
! on through fifteen feet Of har
II pan trap powders. blue clay al
= gravel. and then ON through hite
feet more Of clav and sand into {
y gneiss Astonishing indeed II sesl
J. that under the hard-pan, itself tcl
= feet below tho curb-linls. there has b
found another layer Of this runnl
II sand, a treacberous foundation at
= best, but the more treachccous VII
n forced to yield, as it will iaevital
IN be, to the pressure Of the superi
n posed structures resting with apDar'
le security upon the hard-pan, WI
N once an excavation on either side, I