The southern sentinel. (Winnfield, La.) 1883-1910, 1886-10-29

I1MBEH AND TOOL y

fcrent Kinda OF Wood.
Il IS : fact will known to ra.flmcn
that it is not always the harder woosh,
in the ordinary aeeeatation Of the term
that are the most wearing to The saws
ifany practical persons marvel at this,
and Norder TO themselves why piece
OF timber showing small crushing, ten
sion. ard other strengths. requires more
power TO work into lumber, and a, The
same time wears out the saws and cut
ting tools faster than other varieties Of
timber, the Strength OF which, IN iaos,
respects. is greater.
According to the Lens1cr Trade yossr-
] nal, log OF black Eaiaat and one Of
burr ca.s CT the same size wosked i.so
!; the sam, SEED s,u1Lwili show widclY
different rcsaits on both saws and ma
chiacry. 4 We attempt 70 rive or split
these logs. the wa.aut will work much
easier than tho o2k, aud SO far % the
various strengths are concerned the oak
Is superior By far. but when worked or
! cut into By tools OF any description the
walnut presents nauca greater resistance
th.1 TIE oak. aud .ne same i trus ss re-
sar1 many otkcr varieties Of hard cEd
soft timber.
Il we take longitudinal section Of
these com aratively soft tiIn5ers which
ere so hard GA cutting edges. we will
find the minute pores or interss..ccs Tiled
with rinute g,:stcaisy Particles or
crystals; ard subjected 70 caeniin:.l
analysis we VII. fissl them ooailoscd of
silica, ore CT the rory hardest .l;nerals
i,nown. w.ilc with tie hard. easy WORK
ing Nycjs .hoy sill b foaE5 nearly or
4aite al5seat b. bc.a TIE microscope
and analysis- These little particles, 50
fiaely divided IS 10 be ingusccrtibls Of
ordinary touch, are really better grit
.ifan ordinary sari. ard are the means
IT cutting OF tie fine edge Of cutting
sools. as saw tS.:ss. F...ae irons, and
tic Tic
Two Piaie i-oas, nssie OF q inc quality
Of steel. Gs near aliac Us il MAS possible
20 make b. aa accurate. sli:i.a ne
chanic. were each harsie.1I IN oi:r
iasorxtoev by means Of mercury, then
ii.seIv Sasi5,csea. kat tia edges az each
presented prrcss the saiac hx,eay-
sace besseasa tie ma ,.sss:ss.s.
q These were cac..s Inserted in en- ordi-
nary rlatc. sxsd orc place. on cas. the
/ other on piece OF walnut. 10th pieces
II wood having been Previously dressed.
s st the rate os ono hundred pounds
5 ,rersssarc, each iron wss- crowded fo--
gard fsur inches. Or re OAK stick,
lie psgssure from the rear Indicated
l8rY.5 rans,ds, While Will the .waloG.
~. ss.taiessso- showed pressure of ovor
ose thosl:gud poEnsss, The irons were
So.h nov withdrawn. and FIST placed
, s,cnoata Is microscopes; fkc c-s nsssi
i on he oak prssessS-a = general siissct
! ay.,scssr.-nc. the sxs:,s, Il TIE iron s.scv-
;n- / Il, gs:t tendency t. turn down
uasd. there beng sufficient beat gen
era:ed 81 &c friction 20 partially draw
: Ese temper sloag 10 minute edge.
i Haicl.. hcwcscs. nosalJ not extend back
!. suls..:oct 20 materially aEcct the wear
!. E:sg md cutting properties OF the iron
Il Is constant use-
TIE irosa used on the piece Of wasnu,
sbowcd scratched, noscicd appear
j. ance 81 alcng the -ass,...e odgc, aad By
J, BE aid OF the most accurate means 81
]. sncsxnrcraent nj hand. these notc.se,
were Gil found 70 be Of the same depth
hut different distances apart, proving
cos4clas;vely that The particles OF grs1
or crysts,s which caused them, wsrs
i yayxier than the best mercury steel. ans
wore ell of the same SIC
: AID evenly distribissd. - far q
regards depth of deposit IA tn
< crnia Of the wood Tho szsaii spaces o
she iron cdge between these noechcs q
scratches were sornd nearly as the en-
Grc cdyc appeared originally. showing
aga:a fhat tho cellular t.as;o OF walnut
outside Is mineral dcrossts. was real,
i eoftcf than that Of oak; hcacc. ToFc !
i net for thcac deposits the timber woult
), cy.t much easier. OF course, It tho mo-
Md been drawn back, and again shcve<
fh-occh, tat. aoschcs would have bee:
more ns.pafe1t and ge5lersf. iEcreasip:
i anch t;r1e, ard tie distance showe'
until cse entire cutting edge bad bcei
! q i$sef rut or
J. Consultinx tho Laws governing plan
g - yeratabic growth. We ere told TIM
n ID food before becoming 1T for assiu
{l.tfoc r.ns4 bo re9uccd to rs gasco0
stasc. u this Be 50. ftc question arises
nos a. bv what methods OF plan
: rrnx Is and sxsinailstion IS It pcssibl
J for SHEA 10 appear T. its csisinat e &
e lalIirc state among the nssucs q g
q growing Or fnascccd tree. snaie y
i 4laivczse;lg known Chat tns v1sseey :
wood srcwe only where this mincreI
Z u5afalsnt a some of lts t1cdal,ed ios = !.
q. 1t is not however. ct Escst inscrsst
manufacturers just how It Gsss tncf'
i. out HAT K 10 pruseet Is SHOWN coooi'
4. siselYs To get I'd x It. even wezc
8 spes:bla, would destroy tho beauty IN
= general characteF.ses q ws1nut. -