The Ogden standard. [volume] (Ogden City, Utah) 1902-1910, 1909-11-10
SCIENCE NOTES

The Kansas City Railroad, which passes
through the National Forest OF the
United Stntos Forest Service, has under.
taken an interesting piece of work with
the view OF reducing the number of fires
IN the district The entire right OF way
OF the rnllrond VIII be cleared OF oil iu-
1ammnble material for O distance of 80
feet on each side OF the tracks and
where advisable the land Will be burned
on for an additional distance of 100 feet
The work will be supervised by the Of
nclalS or the Forest Service After the
work of clearing has been completed tho
cleared land will remain under govern
ment espionage and employees of the
service Will be stationed along the length
Of the line through the reservation.
telephone plant Will he installed for tho
exclusive use OF the Forest Department
A rather imposing suspension bridge
for temporary purposes has been thrown
over the Culebra Cut Of the FaEGma
Canal 1t was designed mainly to carry
compressed air nnd water mains over
the cut, but nlso to serve highway
bridge for the troll to Las Casc0daS plan
taton and the small farms on the east
side Of the canal. The towers are mOdc
OF crccsotcd timber and nre On feet high.
The anchoragcs arc old rails heddcd In
masses OF concrete and are 952 feet apnrt
Four steel cables are used There is
clear height of lOSI5 feet between the
roadway and the future water level In
the cannl. which Is not enough for uaYl-
cation. and consequently the structure
must be taken down before the canal is
opened
As menus Of saving time and labor
the street watering and duSt-collecting
automobiles or London have interchange
able bodies. AS they nlcd they arc
drawn to some convenient point aud the
loaded body removed by backing M
against Ie9:c supporting the back por
tion of the load. while the front Is raised
On sling. Here they remain until such
time ns IL Is convenient To remove thcm
10 beat OF train, on which the material
Is dumped for Its final removal. The
motor truck Is backed under m empty
box which is secured and starts or on
its next collecting tour. The scheme
shows great economy of time and space
when compared With other methods.
In the construction of a six-story build
Ing for the Shanghai China Mutual 1cle-
phone Exchange some unusual difficulties
were encountered us buildings OF this
size are rare In this locality aud 1re-
'proodne Is not often iDdulEcd 10 The
, building bad To be OF q cbarncter TO sup
port the heavy apparatus uoeu ana ulHo
Ito protect IL from 6rc The ground 10
'nnd around Shanghai Is very soft and
consists. to a depth OF $50 feet, OF nue
black snDd aud clay saturated with
1 winter In order to keep the pressure on
the ground within half ton per SquRCc
foot, II was necessary TO construct the
: foundations as reinforced concrete
iraft, In the form OF m overturned floor.
with beams and sirderS covering the
whole nrea OF the building The hoor
was about : inches thick, reinforced With
bars laid at right angles. with this style
'of foundation, the total settling Of the
structure four months after its compile
}tion was only inches while brick bulld-
linSs OF nearly the same height With or
Urinary foundations show generally a set
tlement OF Inches and more aud 10
addition are badly cracked by uneven Sst-
Element