Fort Worth daily gazette. (Fort Worth, Tex.) 1882-1891, 1888-11-19
POPULAR SCIENCE,
Pencils aaae OF Psper-Ncw Idasr -Lgtss
In9e- t!uoE

| London Inventiou states Inst rspe
pencils are the nuhiec. OF q patent whici
promises TO lead to E large Industry, So i
understands that the price st which the,
cxa b. reduced is mArvslcusiy low. Or.
dilsry Cedsr>wood pencils, IS every on,
knows, are :3Ede bY gluirg two pieces o.
wood together, after having placed il {
slot made IN one Of them = prepared
! slip Of graphite or 0eAsr marking maze.
| rial. Although Il seems SO simple, sneI5
are greo. many operations to De per.
formed in doing this, such ss cutting tbs
large wood into strips Of the right SIZE,
| making the slot or grows in which the
lead has to be placed, preparing the leSd
Ct ihs required size, tirirg these 10 make
them firm, thsn plsc!ng them hand ~
haad in the slots Of the wood strips,
gluing these strips together, and otter she
glue is set the two pieces Of glued wood
have to be rounded of and polished, etc
The idea Of using paper instead OF wood
for penc!ls is not new, but the objection
to pencils thus formed Was the difficulty
Of sharpening, paper being so tough that
even with the shapes. knife the Jerking
from the paper to the lead caused the ist>
GCk W Shap Shf AHCL nshlH VIC Dhp6E
having to be folded round . previously
formed and hardened marking material
was tedious and expensive labor
These obi ?ctions TO the use of paper are
overcome by Mr. Green's process.
The paper is first made into tubes; .
gross or more OF these ere placed In s
frame forming the lower end OF q cylin-
der, and the subsistence to be used ss 0
marking material Being put IN plastic
state into the body OF the cylinder, By
pressure is forced into the hollow centers
OF the paper tubes. The marking mate
rial, which now forms the center Of each
u6e, is hardened By gradual drying dur
ing six dave at increasing temperatures
Cp to this poiR! the paper tubes are
simply tcugd cases; but by plugging
them into melted paraffia wax the paper
beccmss Of such 8 nature that 1t c2n be
cut as easily as the best cedar wood.
MODERATION IN EXERCISE.
a. H. Brown, who hiss Just been en-
gagged BY the New York Police Depart
ment to introduce the Boston system into
New York, says: "rhe developed mus
Gle is not 50 good IS the normal muscle.
Let the muscles remain set. Exercise,
MOTTO sbn irmally increase the muscle, but
merel5 10 keep up tae health. When you
hsve succeeded through training and
handling weights in making the muscles
hard, corded aud knotted you have in
iured yourself. You have, in 8
measure, destroyed the elasticity Of
the muscles What mAn re-
quires is symmetrical development, and
tEst may be secured, not through gym
uastic exercise, but through diet, gentle
exercises and developing the chest. 1
am more and more convinced every year
of my lifo thst ell 9 man needs In the Wsy
Of exercise 10 keep him In health is the
use OF cslisthenics, two pou "a dumb bells
and 6 good, stiff walk. Never exercise
within an hour before or @fter N ais, and
not sooner tlsn three houis after heavy
dinner. Exercise outside, IL posi-
bic. After exercise tLke cold
shower II the system will stsnd
tt; otherwise, tepid sponge bath, In
general the system ls benefited after S
cold shower II reaction sets in within
five or ten minutes SITTER drying With @
coarse towel. II, however, the sho Rer Is
painful, i. is followed By \ chill and q
feelirg Of lsssitGde, do net take II, Sc it
is IL lrious To you. O1e should on no
account exercise in his street garments
Nature gives the log st life to the eeS en-
tsry Rplns!. The man who vegaEstes,
o1Iy d0ilg moderate sm0uns Ct ex3r-
ciee, preserving CAIN sld even tenn.
persment, er oys tbs l3ngesE span"
COAL DUST As A FERTILIZER.
The accumulation OF coal dus: or CUM
in the al shraclte coal region which hss
heret. fore been OF q1estiona lie value is,
according 10 ColoQel A. Price CT Scrsn-
ton, useful SIS q fertilizer. He gives
chemical reasons for his theories, and
these show clearly that If Q small q1an-
sitv Of pulverlz2d anthracite Is mixed
judIciously with light colored sod devoid
Of the richness go essential to plant life,
greatly enhanced. a third method OF
Utilizing the dust Is 70 convert it il to fuel
gag, which " Ii tska lie piICs OF lumpcosl
The Progressive Age Ge.s IN this point:
&C 1sl, ~hsther Eo:3rg c.se III u ninous,
can,c2 course, be uii.z.d f5g full g1s; but
anlIs! a;i'G cCnfa rs ire lsrgGst percentage
o, Gsr5lr. y is GImre! impossible to
cs cula.e The immense amopnt e fuel gas
stcted up IL the an.hLscits coal GUST when
wa consider .hEt oae ton IF Il Will yiald
abaut 100, coo feet CT gas There is no
dCn5t lpG. tho time is coming 1nep both
5iiuninous srd anthracite COIL will be
iat0 fuel gas, AID this gas, in
RteSd Of the raR coal, viii be the fuel Of
the future
Row OLD THE EARTH IS.
Mr.. 4 d'Assier, ex iniining the quss-
tionem vexAfAn Of the eaFth's age, ar
rives st the conclusion thss.it is about half
3 million Of yseYs for the nebulsr grd
stellar period, and shout twenty fye
milliona f which tll.esn are passed. for
ghe pei OF organic beings Wien aoout
twen!y-six million years O:d Cur mother
esrth, cold and liieless on account Of the
sua's disappesrance, shall be GomsTsst
shaken in Consequence Of the moon rush-
ing on her. and SONS tims later will in
turn 1us3 in the sun. This afsctioExsS|
msesing, il IL. d'Agsisr is well iafosEAsd,
will Gauge momentary ous0reakf lfatI
snd nzht, sid thus the earth EillsasSss
done With its troubles.
USEFUL TABLz IN LIQUID MzAsURSHzFT.
The Uaiverssl Tinker gives thszfaRoW-
iUg table showing ths ca2aciEy ingsg!ons1
for esch foot In depth Of cylindrical cis-
terms Of any disueEsr, which may De Of
81, cf