New-York tribune., 1873-01-17
from tn, veins. and that Of the dried eolorlue matter

from the veins and that OF the dried eoorne matter
OF blood.
To show the utility Of this meaps Of determining the
presence Of blood may mention the following instance
case suspected murder 9I means Q, s"nc su,, ua,,
gate At somctiistance from the place where me crln
was supposed 10 have been committed halohst wN
found lying IN the woods several weeks sirr Y,or ~
obtaining tho implement, drove out inc hande ana
scng on small portion OF the stained woos ana saa
brown dirty solution, which coagulated by heat .,
He then cut OF another very small portion o. the yoSa
aud obtained single drop OF dirty liquid when nc
placed In tube. and light through this being
OF Ss P,So axe coSrns se natter the lie
mated the whole quantity Of matter examined ~ resn
defect the substance and bring the guilt it.
peraor Now blood varies Ia character with Ihe diner
pens many cases for instance when people are SUI
located by going down into watts or wells -,
carbonic acid The spectrum given by blood IA tns %
perfectly distinct from that given by blood IN lts
pounded with sulphuretted hydrogen prussc acd or
other foreign substances the spectrum Is In each ease
death may be- determined in many cases where II II I'M
possible 70 detect II 10y any other neans'i
THE FIELD REVIEWED
And now. before concluding my lecture ! desire to
call your attention to the facts which presented TO
you. We have passed over great ground We began at
nrst with Bunsen in his laboratory, working with MS
simple prism Of glass. and giving us more delicate
Of analysis But tho Investigations did not stop
mere. OtuCr lnNeslgasOTs tOOk up
hniDg It, and accomplishing what might never have
been done, and enabling 10 see what we otherwise
would not have It has been applied 10 the ad
OF the greatest industries of the preseuhe
iron manufacture. IL has still more important appea
tons in regard TO ply siology and toxicology.
on the track OF the murderer, although ne may nave
carefully covered up all traces OF his crime, comes TINS
instrument Inquiry. The blood cOTnnscules so
ceedingy small that two OF them can be passed through
the eye of needle yet the presence OF even portion
OF may be tested by the spcctroscope. Nay even
further DR. Herapath says that It is perfectly easy 70
detect and ccularly examine the human blood contained
In the stomach of rascaly flea. We may even dilute
this blood with water without It's losing this property
especially II the insect had made anything IKE decent
forage a sanguineOus individual lLaughterl
The spectroscope has been applied To the purpose OF
determining the composition Of the heavenly bodies
But IL be question 10 whether It's applications To
these matters important as to matters OF lie ana
death. Truth wherever found should always be nVesl
gated There IL nObler example 70 follow than tnat
when stands up aud says: This Is the truth
not because tells me 1t Is so, but because
have found IL 10 be the truth And 10 my MIND the as
tngushed gentleman who had the pleasure OF lecturlng
TO you a short time since In this hall. appeared In ms
nobest character when he pleaded in behalf OF the IN
vestigation Of truth for truths sake alone"