The new enterprise. (Madison, Fla.) 1901-1908, 1907-05-23

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An English novelty designated as
muh and pocket warmer consists Oh al
Theoretically sealed tube which Is dc,
clsred TO contain a special cnell'.a'
preparation which will MAINTAIN i's
heat for al usually long time. 10 use
I. the case is immersed in boiling wa
ter Tor FIVE to ten minutes and "neh
taken out is incased in red manner
ie.t cover. II is asserted that lne
warmer will retain its heat for from
three 10 four hours.
Water proof glue is manufactures
Of sum sle.lac three paris and lhui"-
rubber one part by weight, these con-
st!,ucl.s beng dissolved in separate
vessels In ether. free from alcohol'
slbjscl to q gentle heat. When NOR
o-gtly dissolved. the TWO solutions are
mixed and kept for some time in
vessel tightly sealed. This glue re-
s!sts the action O. water, both hot and
cold, as well as most acids and alkaiies,
II the glue is thinnei by the admix-
tu-e Of ether, and applied as a warm
ISL to leather along the seams where
this has been sewn together, 1t rem
Gers the Joint or seam water-tight,
and almost impossible to separate.
The cost Of copper refining by eiec-
tricity has been reduced greatly In
recent years in the American rehneries
By the Introduction Of mechanical de-
vices for casting the slcde slabs OF
crude copper and for charging and
discharging the watts. According TO an
article By Mr.. John B. c. kershaw
in Casters Magazine, the expenditure
on hand labor has thus been greatly
reduced, and the time during which
watts are laid OF for recha0Zing and
cleaning has been curtailed. The cur
rent density used has also been great
ly Increased by the use OF improved
methods Of circulating the electrolyte,
and By the addition Of very small
percentage Of hydroch.oric acid to the
copper sulphate solution.
When natural gas was first brought
into use in America there seemed 10 be
a general idea that the supply was
inexhaustible. II was sold at low rates
and usually without measurement.
This method encouraged waste in the
consumption Of gas, and was shortly
abandoned by the larger companies.
Today nearly all consumption is sold
~ measurement. II is believed, says
the Iron Age, that the time has now
come when II Is possible 10 procure
statistics Of the quantity of gas con-
sumed, and mex, ear this will be un-
dertaken. The method will give such
figures in the future that a more d.
rect knowledge will lie obtained OF the
capacity OF gas areas to maintain a
commercial supply OF gas for a GER
tain number OF years.
Carbon tetrachloride is being made
an important new product in France,
Chemical works at Moutiers in Savoy,
especially having undertaken its pro-
duction on large scale. 1t is a color
-~~"i --SS''S iAluiN' IlhG PtlO4SuIl III
appearance, and has the composition
Of about ninety-two percent, OF chlor-
Inc TO eight percent Of carbon. 1t can
be probably made only where chlor-
inc is an industrial residue, as in the
production OF soda or potash by the
elsctrolytic method. 1t boils at n de-
grees c., is entirely yolatilized without
odor. and is so stable that it does no,
tack metals, fabrics or colors, even at
h!gh temperatures. II is uninfamma-
BILE and incombustible. II dissolyes
all fats, and it is expected to take the
place OF such extremely dangerous SOL
vents as carbon sulphide, benzine,
chloroform, alcohols and ether. II
dissolves certain gums and resins
making 1t probably available in var.
niSh manufacture