March 26, 1910





RECORD   ^ND  GUIDE





657





Kentucky   limestone   ................80      .95

Lake   Superior  redstone............. 1.05    .., ■

Limestone,    buff   and   blue...........85     1.03

Longmeadow    freestone    .............8ft      .90

Ohio   freestone   .....................80     1.00

Portage   or   Warsaw   stone...........90     1.00

Scotch   redstone   ................... l.Wi    ....

South   Dover   hulldlng   marble......1.25     1.50

Tennessee    marble     ................2.35     2.50

Vermont white  building marble..... 1.00     1.60

Wyoming    bluestone    ................80      .60

SLATE.^Prices   are   per   aquare,   delivered   li
New York  In   car lota.

Bangor.   Genuine.   No.   1............$5.00  $6.76

Brownville   Se   Monson   Mine......    7.50       9.50

Chapman,   No.   1..................    5.25       6.00

Peach   Bottom   ...................    8.90       T.DO

Red.   No.  1....................... 11.00     13.00

Unfading   Green    .................     5.23       6.40





Giving Money to the City Without
Retnm.

There are hundreds of taxpayers and
building superintendents in this city who
are actually giving- money to the city and
■are getting no return for it. They do not
know that they are doing it. but they are
just the same. Their water meters are
running fast and when the inspector
comes around and saj's the hill is eo
much, it is paid. But the Water Super¬
vision Company. 3 Park Kow, makes a
specialty of looking out for the owner's
pocketbook.

About ten hundred millions of gallons of
city water are saved from waste each
year all of which would otherwise have
flowed away but which would have been,,
paid for by the taxpayer. Even in the
largest plants where a staff of engineers
are employed, the expert services of this
company have resulted In eliminating un-
thought of and unlocked for waste.





One Way to Avoid Roof Repair Worries.

The average building manager, owner
or architect finds that the roof problem,
while a seldom recurring one, is, none
the less, annoying, to say the least. It
means that prompt action >must be taken
or serious damage might occur. This is
especially true in summer, when a sud¬
den shower may do more damage through
a leaky roof than a whole season of snow.

The Southern Roofing & Repair Com¬
pany. 147 East 2Sd st, makes a specialty
of relieving owners and others of this
worry by its system of looking after roofs
fey the year. It has many years of prac¬
tical experience in the repair of all kinds
of roofs, and Mr. William B. Shryock, an
expert in this line, gives each joh his per¬
sonal attention. The roofs of some of the
■most important buildings in New Tork
are under his care.





Spunky Concern Wins Ti-ade Pi-aise.

The average man admires a fellow that
when once knocked down is quick to get
on his feet again and show that he is made
of the right kind of stuff. That is the
case with the Janusch Manufacturing Co.,
makers of hrass and iron goods with an
office and factory at 496 and 49S East
134th st. With the ruins of their factory
still smoking and with the fire engines still
on the scene, their customers received the
following postal card the next morning,
March  8:

"Our plant was completely destroyed by
fire last night.  '

"We shall resume as quickly as adjust¬
ment can be made, and all orders you
have placed with us wil! be fllled at an
early  moment.

"We wish to thank you for the many fa¬
vors tendered us in the past and hope we
will retain the confidence you have re¬
posed in us for over 37 years.

"The same energy and perseverance
will rebuild what it has taken only hours
to  destroy.

"Trusting you will exercise as much len¬
iency   as   possible   and   oblige,

The   Janusch   Manufacturing   Co.

(Telephone.  Melrose  1322.)"

The company's showrooni is at 18 East
22d st, and It also has a brancji office, in
San Prancisco.





Perro-I/ithic Plates.

A catalogue from the Berger Manufac¬
turing Company (llth av and 22d st. N.
T. C), describes the patented Ferro-Lithic
plates for reinforced concrete construc¬
tion. One of the illustrations shows the
application of the system to a residence
at Tuxedo Park, N. T., from plans hy the
Taft-Howcll Co., of Cornwall, N. T., ar¬
chitects and contractors.       ,

Ferro-Lithic steel plates are plates
whose cross-section shows a continued
series of alternate dovetails. Because of
this shape it is possible to concrete and
plaster directly upon the steel plate.

The constant demand for light weight
and consequent low^ dead load in concrete
construction was a reason for the Ferro-
Lithic Interlocking System of Concrete
Reinforcement.

Ferro-Lithic steel plates were originally
designed for combined centering and rein¬
forcing of concrete to meet the demand
for   a   permanent,   fireproof  concrete   roof.







FBRRO-LITHIC PLATE READY TO
LAY.
The application of these plates has been
extended into other fields and they are
now extensively used for centering and
reinforcing of concrete slabs for flat and
arched floors, for sidings of buildings, lin¬
ing of coal bunkers, and sidewalk con¬
struction. They are applicable to either
reinforced concrete frames" or structural
steel frames, the better application being
to the structural steel framing.





A Sti'eet Directory.

A formula for flnding the nearest cross
street to a given address on an avenue,
Manhattan Island:

Cancel the fast figure of the given house
number, divide the remainder by 2 and add
the   number  specified  in  the   following key:

Avenue    A.......   3..........Avenue    4----18

Avenue    B....... 3..........                5----17

Avenue    C.......  3..........               G----  G

Avenue    D....... 3..........                7----12

Avenue    1....... 5..........                8----  9

Avenue    2....... 3..........                9....13

Avenue     3.......10..........             10... .14

11....If^

Lexington   22..................Amsterdam 59

Madison      2(5..................Coluinbus     ri9

Park          34..................West End     59

Example: Find nearest street to 863
3d av. First cancel the last figure. The
remainder is S6. Divide by 2, giving 43.
Add key number 10. and you will flnd that
863 3d av is near 53d st.





Store and Building Lighting That Saves
Money.

The lighting problem always was a most
perplexing one to the manager, owner or
agent, as well as tenant, but new ideas
and new sj-Ktems are rapidly solving this
difficulty. Within the comparatively re¬
cent past architects have had their at¬
tention called to the system of the United
Tungsten Lamp Company (Marbridge
Building, 132S Broadway), of which Mr.
W. P. Crarey is president. This system
is admirably. adapted for use in stores,
factories, garages, churches-, hall's, cluhs.
railroad, stations, .and private and public
biiiid'ings .o£ .all. kinds.  .Where a 176-cp.





arc. lamp costs G% cents an hour a Tung¬
sten lamp of the United system will give
200 cp. at a cost of 2Y2 cents an hour. The
U. T. L. Company's claim is that with the
proper installation of the Tungsten lamp
an actual saving of 50 per cent, will be
accomplished, and "if in any way, this
should not be so, there will absolutely be
no charge for the equipment."

Here are a few instances of installation
that have made good, according to the
company. All the Regal Shoe stores are
being equipped w^ith the United Tungsten
Lamp Co.'s system of illumination, by
which the saving to this shoe company
will be the difference between a yearly
expense of $1T,000 and $7,000. B. Sadow¬
sky, at Broadway and llth st, has just in¬
stalled the largest equipment ever execu¬
ted in this city. He has put in 400 250-
Watt Tungsten lamps, and he says that he
is receiving more than 25 per cent, more
light at 50 per cent, less cost than with
the  other kind  of electric illumination.

Still another installation is that the fac¬
tory of Palmer & Singer,, automobile man¬
ufacturers, Astoria, where 4i5G 40-Watt
lamps were recently installed. The United
Tungsten Lamp Company employs only
experts, and each installation is scientifi¬
cally studied before installation is begun.
It maintains a staff of proficient engi¬
neers, and is capable of taking up and
solving any lighting problem.





Mineral   Oil   and   Cement.

A pamphlet has been issued by the
Vulcanite Portland Cement Company
upon the subject of Concrete and Min¬
eral Oil used in combination, written by
Albert Moyer, Assoc. Am. S. C. E. By
mixing semi-asphaltic base oils with ce¬
ment concrete it is hoped to obtain in
the combination the desirable qualites of
both  for  use as  a  road  material.

The mixing of oil (mineral) with con¬
crete is very simple, says the author of
the treatise. The oil, alkalies and wa¬
ter will form an emulsion becoming thor¬
oughly incorporated In the concrete. If
the concrete is to be mixed by hand.
proceed as usual, and, after the water
has been added, the resulting mass turned
and raked, add non-volatile mineral oil
in proportion of 10 to 15 per cent, of
oil to the weight of fhe cement. Turn
the concrete with shovels two or three
times, raking while turning; the oil will
quickly emulsify and become thoroughly
mixed  in  the  concrete.

If machine mixing is employed, use a
batch mixer, turning a sufficient num¬
ber of times to thoroughly mix the ce¬
ment, sand, crushed stone or gravel and
water. Then add 10 to 15 per cent, of
non-voIatlle mineral oil. Turn again the
same numher of times as it requires to
mix the concrete. The oil will quickly
emulsify and become thoroughly Incor¬
porated   In   the   concrete.

Oils added to concrete in proportions of
from 5 to 15 per cent, will slightly delay
the Initial and flnal set. Increasing the
proportions of oil will further retard both
the initial and flnal set and hardening,
from experiments so far made, it would'
seem that the retarding of hardening will
not be sufflcient to cause the work to be
uneconomical.

The tensile strength will necessarily be
reduced, and with the Increasing percent¬
ages of oil toughness will be slightly di¬
minished, but not In proxwrtlon to the
Increase In  the  percentage  of oil used.





Electi'ic   Power  in  Constrnction  Work.

The Thompson-Starrett Company, gen¬
eral contractor for the new Municipal
Building, has signed a contract for 400
horsepower in motors, 200 incandescent
iamps and 100 arc lamps. Electricity will
be used exclusively for light and power
In the erection of the superstructure.