The Ordway new era., 1908-06-12

ly machines vhe7e the hshuns cAs
Is eleansed from IT, impurities Art
the di1erea; by products are separated
from each olser EE-S; A-e S-eA,
~oondense7> IN which the gases A.
cooled The cooling coodsasss tae
heavier compounds into ;h.cs liquids
which are then lsst behind
Oae OF the substances i2te- -
moved from the gAs i ammonia. az5
from this product j. made The AZ
rloaia ~aier which i USet II sve-z
household
The heavy strong smelling HACK
liquid which = collected in the ooo,.r5
ot the Sas Is %hAt we kaoE A. Ga,
tar This i IL exceedingly compiler
mixture q substances E'-uu b; ar
obtained not oz,y cr~o>o;e oil -;
most Of the dyes which az usst nov 5
days. perfumes, and eyea 6avo-i1c
extracts
Gas. coal tA- and coke z-s z,s1 --1t-
in what IS known a. the byr-7ss ac-
coke ovea. which Is adapted 20 G.-e-.
snt objects. but = Operated 9 ras
same principle Is ccal ;ar = s3-A,-y
a. good a. the gas WORKS ;Ar To- max
in; c-eOso;e oil II -~cen, YEAS
great amount ot szs las ben nate y
the United States by zuo;he- r-acSss
and Is known as Wags- EzS Thts r-oc-
ess also produces ! ta-. which iooks
much Ike coal tar and i ot;sa 5ISe1':
TO tell from ..- Bat tbs iA- : --aliy
derived from petroleum. and dos 80.
MAKE a good oil for preserving zor5
from decay. Wood cr@oSc-e -..h
which 80 many people a-e familiar. =
likewise obtained from = 100. a.
which is produced BY dis;iu.1c -oo.
But like water gas t2v crecso,s. wd.a.
creosote Is not 50 cood for xoss
preservation a. is the coai ta- c-~s
Sote- When c7eosote Is bought fo- tAa-
purpose. therefore. IL shoal. - O..
tain that it IS coal tar ereosote
To obtain creoSote oil from coz, "a
the tar Is In its turn. distilled b,
this dis,illati-ln is like that us@t to-
other liquids Instead OF that e-ap,oys,s
for the coal The still is heztes- - z
as the heat increases the -uEA- oIs-
first lsass over Among these = IL
familiar caTbolic acid This l. = 5,1z.
ertul antiseptic. but it Is not dssi-zh -
in wood prsseTvatiye. fo- il svzrg-
rates so readily tha; it soor becomes
lost from the wood When ! tenre-z-
,ure Of about 400 degrees has hzS-
reached, the distiliate is turned in,
another receiver. and from this 1os-,
on to SO or 7e0 degrees c-eos9,e
oil is produced. Ore OF the sqbs-z,r-s
which is contained in this mixture =
~nspthalene- from which co--o-
moth balls are made Coal rar c--o.
sots. thus produced is the great -uo5
p7sssrvativs-
The residue remaining in TIE s-fll
after the dl<iiIlaCioa IS pitch. =hteA
is chiefly used together zith coal ,z-
saturated felt in the preparation O,
gravel or stag roofing In America
roofing pitch Is the chief e1d fo- -hi-A
ia is distilled. II Europe this fs
aot 50 tue Non p!Ich to- -oo1-e
must De rather soft Therefore ta-
dfstllatioa is 10: carried 50 far in thss
country as il IS in Europe Fer e-.o-
sots oil it would - better II II Es--
which dis1ill al the hirhe- ts-o.-..
tu-eS in most cases neither erau.o-z-a
in the air nor dissolve il -sts- AZ
readily as those which dtszfu -.o-A
easily Consequently they s-sy il II.
~ood for longer tine. and p-ueec, :,
eo--e<Foatingiy froz decay.
Mech sta3y ts h-si-r tsroieS hy ,n-
United States forest se-TScs to c--o-
so.s oil 10 tetsrzire raz. lis coupo-
<.,ioo should be TO gre tie h-.s- -s-
suits in p-ese-Tiar timber. c,t-- dit.
fe-eat coocissoas- and hor the nos.
desirable c-so<oces 1ay ee oesxs,et
TIE reports Of these szzdses- ,oreAe-
~ish detailed cesc-1psioo Of The r,ure
economical processes Of applrins she
preserratire< to rood hare Aee.
worxed into circulars whscA The INV.
ernment has placed II the DISPOSAL a
an u1.n of timber nd vh5cA vm Be
furnished to an who nAke IL requsus