The sun., 1897-02-14
xorxs ON soIsxos AND 1sD Usr.x.

|
| oHen toio. WIN iss WONDERFUL recoru OF ups sno
| downs and nnaliy marvellous outcome OF untold
| reaeure most IMPORTANT chapter may wen DO
| mere no,ed. namely. the Invention OF the square
| sets which have Introduced new possibilities into
mining. being called out by the exgencies OF the
comstock lode. which was 30 wide that &c could not
| ne mined with safety by the old system OF umoer'
rpu.snon lor ingenuity. was huus'eu WIN INC
"se o, 'e'ns reme'y anu a'er .penu,ns :
| ~ " ~ oD''' '"ai' no o'oe'ou 49,. w " - ,
| oo'' y, run iour 'o SIX ieo' 'ohs' nio,''ou u
| 'enopou ~ 'uo Gnu 70 'n~' '"oS eouiu ~ p W
| so' N se''' o' "'o''ockoo or'o'' ns ~
| ""'o o"ehoo' AZ 1851 us '"e oro was 'o
| " ~, ~ "'on'n' % '"v ''''no ~ was suoeo's'' 'op's 80
| ou' a' .Io'" wa" 10 wall across ueposN ~"
| wv IN "u'n. "or"an' hneisn' anu tionon eh
| se's o.ne 70 'nspec' inc sys'e"'' anu ".e'-.u ~
| '.' :" S'u'u nv "'"'o pe "npro'eu 'po ~ Wv
| evils VI oco' Du' 'no ioea "as nov pson'eo'
| ., .. III
| ~ p-i p ~.uuies' ~ W 'oe"o" y. ~
| '''s" Aeoo'"'on. r"'''nee was '""a' W .no ~
| 'hp. " ''o'' o"'er L'uFe 10 'o'or""o ""e''e'
| '"'''" 'o"' p"'s T" "o""n '"e e'he' vi eps0o'" :"
| J." "o'R"o"'hoo'' ino nute machine on "hon INC
| ohpe,'men's hs'o oee" eonuue'eo !. ou'" on = p',
| mf' i'o'a'eu rom 'no moor OF 'ho iao"rNofy' eno
| o"uH" "s c'sehua' VI an e'ec"'o "o'o'' ""a 's'
two parable, steel disks three feet In diameter. the
whole being capable of spinning like a top at high
I
| into two equsi portions each OF which trsvcrses
| th- space between the disks one right handedly
| and the other nft.handcdly: tho two beams then
unite In a teicscope and produce Interference
| frinrcs. Now. II tho ether were moved by the mat.
ter. rotation of disks would accelerate ray
| and retard the other one, shifting the fringes.
| but such shirt has noted.
| Som. r.m,,t ,b,e r, ,y,,. according IN Tho Eroi
,,,r,,o N,v, have been ob,a,ned in te.,. Of n nre.
| proo, eons,ruction I'm which n concrets arch
stre,gtbe..a ~r,b s,.., rods cons,,tute. the noor
.upport he te,,. showed po.,ty,iy what would
| othervi.e be c,ps,,,red i,nurobab,e Tint nm arch
| of this eonstruo,,on couia .upport n noor loaded
| with ioo Mound, per s,uare foot, while a nre was
kent under I, for nye hours. reaching n Temperature
| Of above Y aoo s.yr.e. F.brenheIt or b,yond tho
melting p,int OF copper and even OF ,a.t IRON and
stream OF water. could Withstand n load of 500
! pounds without fracture. The competitive test In
| this case. betweca ar n OF concrete and of
hollow tile. In which tho latter failed. The Ne,rs
| ciarss to be OF the most important contribu.
tons yet made TO our knowledge OF the ultimate
distance OF nreproof noors showing. Il does. that
In nre.resistipR qualities such conMrnction at least
| EQUALS that which has heretofore been accepted as
the STANDARD.
inc statement u maoo of writer IN 'he Apo""ker
| Se"ung 'ha a rematkaoe kinu OF paper u pro
COreA
out the use OF any machinery Its quality sxceis
that OF the very best nace in China or Japan The
| raw material used for this paper Is obtained from
the bark OF Brous.onsta pauyrIIera, which Is col.
ected in the spring and beaten in water containing
a large adrntxture of wood ashes until reduced TO
thick pulp; this 1. taken in large ladies and spread
- -. -, -. -, -.
into thin shec g. Another kind Of paper is produced
| from old scraps trodden into pulp. much In the
| same way that grape Juice I. expressed In some
| countries a process OF puiping which though slow
ha, the ad7 ,utasc OF not breaking the nbre much
a when machinery Is used; then after the pulp has
been made into paper tn. sheets are piled up TO
height OF sx feet and cut into pieces TO be again
| subjected to the feet .tampiug-at the same time
he roots ard seeds of plant called tackpoui' arc
| give tenacty and toughness the paper.
|
| A thorough t..t 70, , y..r.. tms n, Amin. and