The evening world., 1916-09-28

equipment ~ me 80. hsmist .sa M
mrflUo legal ssTfrt"
Kennedy picked up me olA sult
which 80 had taken from ne room Ia
Hollis kitrhrn
= don, suppos~ you had sby Asa
= the tremendous Importance ~ The
piece ~ evidence Shirh - found this
morning D. went IN 4 am Eoins
90 o % What our little sscursion
produced Here 10 the sult % clothes
which Ss found tucked away. shall
nrst sNsmine this suit In daylight. 70
-e whether there are any stains on H.
and then I am going 20 take u into
lamplight. Tor under such light n
sometimes happens that stains sre
found which are overlooked In the
light ~ the sun"
Having examined The suit carefully,
Craig said This man was employed
H. the building trades. ve know.
Therefore, there may have been spots
- paint ON his clothes. and II would
be doing him a great injustice TO a.
sumo onhand that these spots which
! have found are blood spots Lat Ne
see. ~ they are red paint water will
have no effect on them. You can zee
Tor yourself that II does. me that
warm water. with Q little salt In u.
does slowly remove at least those
spots which ] have tried.
But perhaps they are Iron rust.
That would be natural. Iron rust va
rios greatly In Its appearance. and
some forms closely resemble dried
blood. but II seldom presents . dark
red and glazed appearance. such ~
ono or two OF these spots. which he
seems to have overlooked. do. There
IL iron rust on these garments. but
there are also other things. especially
hero In this al Seams OF gar
ments and welts OF shoes are excellent
hiding placea FOR spots which arc read
lily passed over by a erimina In clean
ing himself up.
There were various methods In the
old days for discovering whether blood
was present or not. Hut there 10 M
infallihle test. and II Ia 30 new and 90
simple that We shall dispense with all
the rest. refer to the infallibls pre-
cipitin or sociological test"
Craig was p~iayfully poking his nm
ger In the cage at the rabbits. mo
vivisection. Walter" he remarked. al
most before tho words had been
formed ON my lips "This test was
elaborated. starting some fifteen years
when kraus was studying albu-
minous precipitatea II has sometimes
been called tho Uhlenhuth test. but II
has been studied by Nuttall. In Eng
thHu, anu oSoGI tua aAiu otIuitkSs III
Germany. M well a. many others II
10 simply this: that II has been found
that by injecting Into q rabbit some
human blood tho animal develops a
serum that will aus the formation
OF q precipitate with the blood serum
Of . human being-that Is. that the
animal develops q precipitin serum
} against allen blood.
MY ffrst step was 10 prepare the
rahhlt ~hi.h n haVA hArA for ShA nrA-
duction Of anti-serum by injecting
. little human blood into Il. The ami
nal does not suffer. but 10 merely con-
fined In sanitary surroundings The
human blood Injected In taken fresh.
the fbrin In II removed by shaking II
In a sterile flask containing beads. and
from Ave TO ten cubic centimeters OF
this d~ehbrinated blood are injected
into tho rabbit at various ~intervalA
After q certain period. the serum 10
taken from tho rabbit"
Craig mads . s. ght ineixon In the
ear of one OF the rabbits. and drew on
some Of the blood In a test tube. which
he laid nearly horizontal. The serum
exuded from the clots formed In the
test tube.
"The next stop II to prepare the
said. taking the old suit.
He separated some Of the threads
in the spots. and tried to scraps OF
some particles. Finally he decided to
soak soms OF the spots with . solu-
ton Of salt and water. which he said
was from . 70 . per cent. salt about
like the saline solution u the body.
The resulting solution he placed In
carefully cleaned and stsrtlissd test
tubes Of small cAlibref
u am now ready TO- make the test"
- AAA A~h a. 49,
tube containing the salt solution
from one Of the stains, Now, when
I add some OF his serum which I
have obtained from the rabbit, II
there are any races of human blood
; In this tube. a hasy. milky ~focculent
p%recipitate ought to be ormed 1t 10
Characteristic. II there Is no human
blood. the addition OF this serum will
simply result In the production of q
clear liquid. and there will be no
I. change, though II Il were old blood
, II might take some time to obtain
|, the characteristic reaction. II We
don find II, then we shall have to
: try another spot. and another. and
then. II no reaction takes place, why.
our case simply breaks down. and we
[ have been following a wrong seem,
that's all"
lie poised the serum over the little
l test tube. and remarked; This test
IL mid 10 be so accurate that the
, blood Of an Egyptian mummy thou
!, sands 81 years old has responded TO
II. Here goes"
Craig poured IN the serum, and we
strained our eyes TO see what would
happen. Nothing az all haPpened-for
n moment. Then slowly. ineXorably.
a. all facts and laws OF nature. q
slight milky-white ring began 10 form,
ut Is blood. all right" said Craig.
setting the tube down decisively In the
rack, and facing me.
And the Doctors" I said. cannot
assert that 4, is the blood OF some anil
{ mal-l dog, for Instance"
: Positively not, There are separate
, tests for every other animal besides
> ma there Is a serum 10 discover the
: blood Of a horse, Of a COW, or a dog.
, a cat. 4 pig. II any OF these were
! added TO this test tube we have here,
= the liquid IN II would remain quite
} clear. II, instead OF human blood. II
, We're the blood OF a dog. for Instance.
, the addition OF the proper serur
would bring out that cloudy. millKiks,
= ring, Nothing else would DO 1t. An
= II the proper serum 10 discover tho
, blood Of a dog had been used, instead