The sun. [volume] (New York [N.Y.]) 1833-1916, 1899-08-13
HEALING, REFRESHING, BEAUTIFYING
NOTES ON SCIENCE AND INDUsrRY


The new method OF producing relicfs by tho aid
OF photography has been explained by NJ. Lemae
before the Soceth FRANCHISE dc photographic. The
model, he says, which 1t is not necessary powder
treat specially, is placed in front Of black
background, presenting the prohl" to the camera.
Two plates are excessively taken, avoiding all
displacement Of the model between the two
posurcs; for these the source OF light having as
small dimensions MS possible. a cartridge Of pow
dercd magnesium being preferable-ths to be main
tanned In plane perpendicular to the axis Of tho
objective and slightly nearer the latter than It Is
to the model. During of the poses, the model
is lighted about thrce.quartcrs in 'front.' and. for
the second threp.puartcrs to the side. Negatives
are obt aimed films which are then placed exact
ly another; In this way the most salient
points of the face are represented by an Intense
black, these having received the maximum Of light
In one or the other rXposure-hc less lighted por-
tions are gray and the hollows. having been each
time more less in shadow, appear as transparent
places in the negative With this combination, .
print is made upon paper which permits OF easy
retouchng. such hs platinum papcr-this print be-
ing then finally rctouched in order to bring out
TO the best advantage the hair and drapery.
The curious and well known hy.product Of zine.
chloride salts Of zine which formerly went to
waste, is now being largely used rs IA wood pre-.
sentative by railroads, bridge-bulders. dock.bud.
rrs and for the protection of shingles, clapboards.
anu ""' '''' -. 80. .n,., ~,
VI i""u'',' W. n y, hyd-.r,i, nrossura
Niu'' III '''u'.'"' ~ 49, =, ,b ,,cnd Witch 1.
then soaked In a solution OF tann!n and glue. An
mp, -, ~ 49,, ~ ,h son,a IA and sor,hern
Pacific, and some other Western roads, are treated
in this manner, the companies named using an
"" ,'' Wv h r,ho sirgrlar fact ia also
''a ,t, ,.,,h tbis s,mn,o treatment A Pine
.ao ,.nt., "a tho only kind that can be found out
r., a., ,n,,In cou,trv-will last three times a.
, 49, ,, -, oL
'Ns "
yarI,ns automatic devices have been contrived
and introduced, from time to time, to facilitate
the process Of sheep shcaring but not with inc
satisfactory results desired. One of tn" most re-
cent mcchanlsms in this line Is, however, said to
he So effective As u substitute for hand work That
II Is coming into extensive use In some OF inc
wool.raisng States and, rapid is tn" operation,
that man has been reported to nave shear'a
two hundred and ten sheep in a day, while me
general average is about On" hundred daily' -FOUR
minutes being the minimum 'ln'' iva '' 49,, no.
is taken IN in on" piece, leaving tn" animal as
smooth and clean MS though 1t had been sha'ea'
while the only force required "i me shraret
that Of holding the sheep anu guiulhs 'ne Wy
pcrs The we'll known operators In TINS lihe' phb
Brnthcrs Of Sycamore, Ill, are said I" nav" cnp'
ned NO less than fifteen thousand sheep WIN 'ne
new machines, an additional hh'ah'AEe III No. Nv.
employment being ais" mentioned VIZ '"a. 80.
one pound NOR" w"ol Is obtained from ea'n '"eep
than was possible In the OLD way
Under the name OF 'keramo -accordlhE II" N'"'
sul Warner. writing from Iepng-a building mate
rial composed principally OF glass ana n"nut"' ~
ed at Pcnzig, Silesia has lat'! peen '"''"" -,
that region. As far ns appears. thls mh'''ni 10
made from powdered glass waste, when IL haroeh
ed hy Il sIrcia devitrifying process anu '"nh"'n.o
,,y means Of strong pressure; III inns manne' '"o
TRANSPARENCY brittrncss, and fragiiy OF the glass
are destroyed. hut other prominent properties eA'
trHurdinnry hardness s'hph''s "s"'"'' 'Np
inability insensibility to oil, grease hrluS e"'-
are retained in this new rr"duc'' rNi"t"'
shows that 1t can lie used with s"a result" to'
wansruitings in the interior OF pnllni"sH' i"' '
ing floors In houses, Kitchens washing rooms We
randas balconies, etc, for rough castings Oh ""hs
exposed to the weather, AS well az Tor "H"'"'s
which {" he hrepr"of. Inc '"i"r'"s ''P."u'
upon the color of the glass used III 'ne '"""t".
lure. and III" advantages OF 'he a'"''' "PP'
l." fully established
Some eminent astronomers among 'h''h "'s"o'
| \. Ei""", director 81 Ia" '''"''" ""N'''"'" ~
been engaged for III" l"S' -FOUR E'"'S III
| 7" obtain lh"'"sI"p'' " Wv % 4, u,o, go.
! IN" occurrence "l 'h' sum Ups -. .,r.
| ports, however, mat '"""s" '''"'" 49,, ,hr
| been nhIhlH'u' 'h'I' - ''"''' wv '''''' -, 80
mr." photographs Of the ''F"n"' Il" snoTS, !" ,"n
Kinds 81 apparatus Una, 'n' "'ns lL,,' -
! du'"d ~ H"r' 81 N'""'" ""'' - a., 80
! ~ III All "'''''''"H nun ~" 80 ss,rra
serted 'h"' NV "''H "'" - * ,,h,
""Hid nr one '",' 'I'"''""' " ~" r,,,,as ,h., ara