Telegram-herald., 1889-07-23
D. tsrsuia y ~hish he plotasea better

A-4~A@N 1l<2-~~ L-~~A-AA1~<s l .L-AS--
d. ssrszls - wkieh he psoSzsea better
ks tAz8 tAs iGpox-sc-
-als z--fsSr = pEsi-- aaschzziczi print
t-As Il, kosssFs-. A=4--sg ns away trcxa
co< hl<ScK-czl F<sckze u TIE progress &
cesel9Fl1eo- Il pAstosTzFhs - : FactgEs
EEzzilZ 1T. i---o ~lAs. thoagh osiy ons
- TIE t1a1eaes q IS sppLcet-1as e
nsF~ztAS-szs very vile rsld - ~
surn - he Ea1ln thread.
Tie c<4lo-kten process Lid Is own fo-
a. pho1ogrG g1lc work a. late as 1871 ard
l. stiu used with better results than any
ether for TIE nl<Sin q sueh sold blGex
zl5 y hIte negatives $ are used By pa9.J-
erarzvers, n types. and cer-aln other
sDecifc zpLiicztions. bar l. the year men
tionad Dr. T. l. Aa1iox brought out Ia
EagLzn5 dry plates eo2ted wLth gelztlne
com bined with bromide Cf silver. They
were by 10 uleans P=rtoct, bat tAesr de-
sirabLitY VS. at once manifest &14 L.
cited many eKperlsael+srs - sea i'm
uroyelneuts upon tBeul- 1T Burgess. "
Pockhzn T. KeDnels and Charles Ben
nstt-the latter - late - ls79-S)-Inzds
tie chief improvements IL the oirecsicn
u Increasing the sensitivsness Il The dry
plates, IN ~ WaicA such success has been
eventually at.ainad that 40" al expos
uEe Tor the inGaisesiInAl part Cf eec-
ond i IS effective Is that Il hElt = min
u-s vss l-ss than = loc-cs ago Nov
dry pia.es are universally used for por-
t4isrre, land apes. i" instantaneous "
views, e1c.
When TIE sen6itIveaess Of the dry
plates Lad been perfected IL 1880, they
were stiI detective IA the very import
ant particular that they would not stand
tho heat II our climate. 1t a tempera-
ture of - degs. their gelatine was liable
- "friil, blister and even melt quite
OF the plate, 50 that II w1-s necessary IN
summer 70 keep them cool with ice. 1.
&. Roche. after long and dishearteuing
serles of experiments. finally by sheer
accident hit Upon ge.atine coating that
could not be melted OH with boiling
water OF even by the heat OF Bunsen
burner. and lis discovery IS In general
use today. without any more benefit 70
him than any other Of his many inven-
tions from which others have reaped
great fortunes and he nothing. About
tie same time that lie made tsis import
aut discovery, or perhaps little before,
Mr. Roche conceived tie idea OF apply
.ng TO paper for contact printing or ex-
posing ia the solar camera gelatine
emulsion similar TO that employed IN
coadng the dry plates. This was for en-
iarre.neats for crayon work. Ee was so
successful that he produced paper so
sensitive that Il could not be used in the
solar camera. and had TO be worked by
artificial light to keep it under control.
Before a large number OF photographers
assembled in the Cooper Institute he
made pictures upon it by the fash Of
pinch OF gun cotton. The English ''pla-
linotype" paper, invented by Mr.. Willis,
was already IN existence, and was ac-
knowlcdged as giving very fine results,
bCt it was slow, required the use Of the
solar camera a very costly instrument)
and could not he used ON dull days. Mr.
Rcche's discovery did away with the
solar camera altogether, and with his
paper the work Of enlargement could be
done in cellar by candle light. The
importance Of it may easily be imagined.
But that invention, like all the rest, was
clutched from the old man, who is the
typical inventor par excellence in his
inability to look out for his own interests.
T. c. Roche has had more valuable
patents in photography taken out in his
name than any other man in the United
States, and has freely given away more
discoveries than any other. Indeed, it
would be correct TO say that lie has given
away all that his rare genius and ability
have attained, and others have become
wealthy on them while he has grown
old and poor i'll all but the regard in
which he is held by the Photographic
world.
It is worthy OF mention as remarka-
ble fact that IL 2ll the United States and
Great Britain not IN inch of paper is
made fit for Photographic uses. The
worlds supply comes altogether from
France and Germany and commands a
high price. This is something for our
many American paper makers 10 chew
upon and rcProGch themselves for.
It IS not apparent why they should no.
make quite IS good Z paper Of any epe-
clio Kind as can be produced in EGrope
And another fact that goes with it is that
only the finest French and Swiss gcla-
tine ca1 h used. Not al ounce that IS
suitable for the uscsof tho manufacture
of photographs material IS produced IL
the United States. Cannot soae OF tic
big baroas Of Slaughter. cut in Chicago.
take this hint for tic util.zat.on in most
E.o-t-olc fashion o. material that thcy
have in excess and 30 start another "in-
fant industry" that viii very promptly
stand upon its ova fee;2
Il is hardly worth while 70 moro thar
recall tie ho-,-o of various TYPES that
we're bro-~it out il the carly days Ct
photography. Pretty much every abe
fhotgc.1i i.er gct Zap some novelty Of his
o-en uaicr 4 peculiar name. foF wh.ce
he of course. clainsl suDoflosity o7e.
al others. and very G zen the same pro
cess had different names II different
~lti-s.
Thus "au,br-.-r--." "irorytypcs. 7
"hanoi-qrs." "r aniatypes,~ "feTro-
types. e-c.. cane iato popular know
lodge. They were generally returns
irom photography in tie direction of ,he