Los Angeles herald., 1906-02-18

stamped with a private mark for Mr..
Vaughn to operate on. The results OBJ
tanned are set forth below.
Copper
TN my presence part OF the copper
was cut into small pieces, fused in
crucible and put through the "pud-
ding" process by Mr.. Vaughn. The
fused metal was then poured into a
mould. The so obtained ingot had a
hard and steely ring If struck by q
hammer. The ingot was then rolled
between steel rollers showing a very
decided increase in hardness over the
original metal. Then strips of the
rolled tempered" copper showed de-
cided elasticity although not so mucn
as spring steel. In bending beyond
the limit of elasticity the metal broke
like steel spring, the break showing
q crystalline surface. A corner of the
tempered" copper will easily scratch
the surface Of the original sheet cop
per from which It was produced, prov
ing a very marked increase in hard
ness. Careful analysis failed to show
any different chemical composition of
the original soft copper and the tent
pered" copper
Tempering Gold
"a plate of is karat gold was tenn
pered by DR.. Vaughn on one side of the
plate while the other side was left in
its original state. The unaltered half
could easily be hammered out on an
anvil. The tempered" half had a
steely ring and very marked resistance
when hammered. The tempered" half
had considerable spring elasticity,
which was absent in the untempered
half.
"I had a knife edge put on each side.
The knife edge on the tempered" side
could be used for shaving, sharpening
pencils, cutting thin sheet copper with
out indenture in the edge, while on
the unaltered side the knife edge be-
came bent and useless in the first at
Test of Silver
1.-THE test Of sterling silver was a COM
plete repetition of the gold test with
identical although not quite as pro-
nounced results.
I'm addition to the above tests a case
containing various surgical instru-
ments, such as scissors, scalpels, hypo-
dermic needles, ETC., manufactured Ivy
DR.. Vaughn was submitted to me. The
working parts of all of these instru-
ments were made of Ia karat gold.
They all showed spring elasticity, keen
cutting edges and marked resistance
against wear and tear. They combine
the working capacity of steel instru
ments with the great advantage of ease
of sterilization and non-corrosiveness
"As far as my tests have gone | con-
slider that the products of DR.. Vaughn's
process for 'tempering' gold, silver and
copper fully sustain all the claims
which he puts forth.
DIR. JULIUS GOEBIG."
A Nova Scotian
DR.. q. f. Vaughn was born in Nova
Scotia, where his father was ship
builder. After the close of the civil war
the family settled ON the Atlantic
coast in Maine near Alfred.
Young Vaughn learned the trade of
matchmaker and jeweler. During the
year 1888 he conceived the idea that
he could discover the lost art of tenn
pering ductile metals and began work.
ing on his "hobby."
During the seventeen years that he
devoted to his researches and expert
he has exhausted an immense
sum of money, to say nothing of energy
expended in a quest that at times
became almost hopeless.
When at last success came, three
years ago. he did not herald the fact
broadcast, but continued to plod along,
making new experiments, and waiting
to announce his discovery until he was
certain that success was his in full