New-York daily tribune. [volume] (New-York [N.Y.]) 1842-1866, 1864-10-13


purchased in Now-York and other cities OF the East
and brought 70 Washington OF an enormous outlay
of time and money. The saving in cost Of freight
and the delay necessary to its safe transmission has
already saved an immense outlay TO the Govern
ment.
There sre SIX turning-lsthes, one grinding ma
chine one drll-press, three planing-machines AZ
present In operation in this room. On our last
visit we noticed o trimming machine intended Tor
use in the separating and trimming OF Treasury
Notes which had Just been completed and would be
ready for use in day or two. The work and gen.
era appearance Of this machine will compare favor
ably with that Of machines made BY the best estab-
hshments elsewhere.
There being no Foundry connected with the De-
psrtment, the casting necessary for fhe several ma
chimes constructed here, is done at the q. s. NAVY
YARD and other pieces outside the building. Con-
nected with the Machine Shop are commodious
Store.rooms supplied with iron, oil, tools, and the
numerous other articles required in the prosecution
Of its numerous details.
M. J. @. Harmon, the msster-machiHist OF the
shop, informed us that but three machines VIZ
bolt-cutter a shaping machine, and gear-cutnns
machine were needed TO complete the complement
of the establishment and they would soon be
supphA.
The shril whistle Of the engine IN the courtyard
of the building reminds US that the hour usually al
lotted to refreshment has arrived-it is noon. At
one O'Clock it viii sound again and then We will ae-
company you to tn sper-making room adjoining
We are now about 10 enter upon new phase OF our
subject. We have, as Jack Tar would say, been
sounding our subject, and have found bottom-and
a pretty deep one tOo-in the Forging and Machine
Shops.
We now mount fight OF stone stairs 70 the base
ment floor, and enter the
PAPER.MAKIYG ROOM.
Here propose devote thehou which must elapse
before work Is resumed, 10 brief statement Of the
main causes which led TO the organization OF this
important branch Of the Note-printing department
Until within o comparatively recent period, the
paper necessary for the Of tho Bureau has been
made and supplied by manufacturers in Connec-
ticut, Philadelphia and elsewhere. Earnest efforts
were made during the first two years TO secure
O peculiar kind Of paper, the manufacture Of
which should be known only to the Government,
and exclusively used BY it. A Committee OF the
American Academy Of Science was appointed by
the late Secretary Of the Treasury to make investi-
cations and report upon the feasibility Of obtaining
such fabric. In October, 1862, new description
Of paper known as membrane" paper was present
cd TO the Secretary which seemed to satisfy The re-
CURED conditions Arrangements We're at once per-
feced for it's manufacture in the building, and after
series Of expenments.by Dr. Stuart Gvyn, Its In.
ventor, and the present Chief Of the Bureau, Mr..
Spencer M. Clark, successful result was thought
10 have been achieved. About half a million dol
lars Of the fractional currency had been printed on
this paper, when il was found that numerous spur-
GUS and counterfeit issues Of this money were being
circulated. Many Of these limitations were SO admi-
rably executed as almost 70 defy detection, and o
change was at once deemed necessary.
The manufacture Of paper combining the quail
ties necessary for plate printing, as well - being
anti-photographic and not liable 10 split was at
once desderatum and necessity. II was accord
ingly resolved 10 make further experiments which
were again entrusted TO DR.. Gwyn. This gentle
man, to whom In conjunction with Mr.. Clark, the
Government is largely indebted for their persistent
efforts in the teeth of determined and continued o-
ceeded in producing paper which we have every
reason to think will battle the energies ofcountereit
ers for some time to We say for some time, FOR
We are Of those who believe that complete immunity
from danger 10 impOssible-that what is made by bu-
man hands can be unmsde OF duplicated by the same
agency. In other words, that the only security
against fraudulent issues OF the national currency.
consists In frequent change either in the compost
ton Of the materials and in their manufacture, or
in the form and appearance Of the moneys them
selves-whieh il pretty much the same thing.
| But 10 return 10 tho Paper.mill before which we
have kept you standing, 70 our mutual discomfort
longer than We at first hoped4 Restrain your impa-
tience, my indulgent bu. ANXIOUS reader. Thus far
all has been fine weather and fair sailing" but we
now reach point in our exploration, where neither
interrogation nor exclamation will avail us any
thing-a branch Of our subject within which the
jealous eye Of the ontside world may not peer. Al
we know is that it 10 not full-stop. and We are
thankful for that.
The experiments Of Hessrs. Gwyn and CLARK, just
alluded TO- resulted In the production Of paper 1t
once firm in texture, smooth Of surface, and Of tho
required density with the allimportant additional
advantage Of being completely anti.photographic.
This great and essential feoturo Is gained by intro
ducing into the pulp ohwhich the paper Is composed
a fiber which minglcs with tho pulp in the process
Of manufacture, and which cannot be photographed
without dscoloring the paper 70 which 1t is desired
70 transfer impressions, giving it the appearance of
coarse black spider-wcb. As this fiber is made in
the paper and not merely attached 10 the surface it
cannot DO removed without destroying the paper.
Thus all attempts to counterfeit money printed on