Absence of copper from the curbstone
davidma...@yahoo.com
examined it.
John McAdams
<davidma...@yahoo.com> wrote:
>Why was no copper found in the curbstone when it was scientifically
>examined it.
Why should there have been copper?
.John
--------------
http://mcadams.posc.mu.edu/home.htm
Anthony Marsh
> On 25 May 2009 23:27:57 -0400, "davidma...@yahoo.com"
> <davidma...@yahoo.com> wrote:
>
>> Why was no copper found in the curbstone when it was scientifically
>> examined it.
>
> Why should there have been copper?
>
He is wondering who thinks the missed shot made a direct hit on the curb.
WC defenders never explain the WC's missed shot.
> .John
> --------------
> http://mcadams.posc.mu.edu/home.htm
Robert Harris
<77683073-4320-4ef1...@t11g2000vbc.googlegroups.com>,
"davidma...@yahoo.com" <davidma...@yahoo.com> wrote:
> Why was no copper found in the curbstone when it was scientifically
> examined it.
When the missed shot struck the Main St. pavement, the housing was
probably separated from the lead core, which went on to strike the
curbing, while a small piece of debris hit Tague.
Robert Harris
marki...@yahoo.com
<davidmaggs2...@yahoo.com> wrote:
> Why was no copper found in the curbstone when it was scientifically
> examined it.
You'll need to familiarize yourself with the collective works of
Harold Weisberg for more information. If I recall, Weisberg claimed
that a scar on the concrete curbing existed where a projectile or
fragment struck, and wounded James Tague. He claims that the scar had
been patched with some form of concrete repair material, and that when
testing was ultimately done, the sample that they tested came from the
patch, and not the original scar underneath. Respectfully,
~Mark
Anthony Marsh
Another Magic Bullet theory like Posner's Magic Twig Theory?
You can't demonstrate that this is even possible.
>
> Robert Harris
>
John Fiorentino
Anthony is essentially correct.
You FIRST need to establish a fragment actually hit the curbstone. That
hasn't been done conclusively.
It would also be nice to firmly establish that Tague had a "cut" and some
"blood" on his face. That also has never been done. In FACT the available
testimony indicates otherwise.
John F.
"Anthony Marsh" <anthon...@comcast.net> wrote in message
news:4a1da8e4$1...@mcadams.posc.mu.edu...
Maggsy
wrote:
> Anthony is essentially correct.
>
> You FIRST need to establish a fragment actually hit the curbstone. That
> hasn't been done conclusively.
>
> It would also be nice to firmly establish that Tague had a "cut" and some
> "blood" on his face. That also has never been done. In FACT the available
> testimony indicates otherwise.
What testimony ?
>
> John F.
>
> "Anthony Marsh" <anthony_ma...@comcast.net> wrote in message
>
> news:4a1da8e4$1...@mcadams.posc.mu.edu...
>
>
>
> > On 5/26/2009 7:24 PM, Robert Harris wrote:
> >> In article
> >> <77683073-4320-4ef1-aa0f-948a7433f...@t11g2000vbc.googlegroups.com>,
> >> "davidmaggs2...@yahoo.com"<davidmaggs2...@yahoo.com> wrote:
>
> >>> Why was no copper found in the curbstone when it was scientifically
> >>> examined it.
>
> >> When the missed shot struck the Main St. pavement, the housing was
> >> probably separated from the lead core, which went on to strike the
> >> curbing, while a small piece of debris hit Tague.
>
> > Another Magic Bullet theory like Posner's Magic Twig Theory?
> > You can't demonstrate that this is even possible.
>
> >> Robert Harris- Hide quoted text -
>
> - Show quoted text -
Robert Harris
"John Fiorentino" <johnfio...@optonline.net> wrote:
> Anthony is essentially correct.
>
> You FIRST need to establish a fragment actually hit the curbstone. That
> hasn't been done conclusively.
>
> It would also be nice to firmly establish that Tague had a "cut" and some
> "blood" on his face. That also has never been done. In FACT the available
> testimony indicates otherwise.
>
> John F.
ROFLMAO!!
So, at the same time that shots were being fired in the direction of
Tague, a car threw a wheel weight, creating a fresh lead smear on the
curb, near Tague and then he walked into a wall causing himself to bleed,
but then just happened to forget about it.
Whoever thought up that one should have been a conspiracy buff. The 9/11
crackpots don't have that much imagination:-)
Robert Harris
a1e...@verizon.net
wrote:
> Anthony is essentially correct.
>
> You FIRST need to establish a fragment actually hit the curbstone. That
> hasn't been done conclusively.
The spectrographic analysis of the curb smear indicated lead with a trace
of antimony. This composition excludes everyday sources of lead. In fact
the FBI could not even suggest an alternative to the lead of a unhardened
bullet.
>
> It would also be nice to firmly establish that Tague had a "cut" and some
> "blood" on his face. That also has never been done. In FACT the available
> testimony indicates otherwise.
Which parts of the following WC discussion do you dispute?
At a different location in Dealey Plaza, the evidence indicated that a
bullet fragment did hit the street. James T. Tague, who got out of his
car to watch the motorcade from a position between Commerce and Main
Streets near the Triple Underpass, was hit on the cheek by an object
during the shooting. Within a few minutes Tague reported this to Deputy
Sheriff Eddy R. Walthers, who was examining the area to see if any bullets
had struck the turf. Walthers immediately started to search where Tague
had been standing and located a place on the south curb of Main Street
where it appeared a bullet had hit the cement. According to Tague, "There
was a mark quite obviously. that was a bullet, and it was very fresh."
In Tague's opinion, it was the second shot which caused the mark, since he
thinks he heard the third shot after he was hit in the face. This
incident appears to have been recorded in the contemporaneous report of
Dallas Patrolman L. L. Hill, who radioed in around 12:40 p.m.: "I have one
guy that was possibly hit by a ricochet from the bullet off the concrete."
Scientific examination of the mark on the south curb of Main Street by FBI
experts disclosed metal smears which, "were spectrographically determined
to be essentially lead with a trace of antimony." The mark on the curb
could have originated from the lead core of a bullet but the absence of
copper precluded "the possibility that the mark on the curbing section was
made by an unmutilated military full metal- jacketed bullet such as the
bullet from Governor Connally's stretcher."
End of quotation.
Candidly, John, your remarks have my worrying whether Canal-think is
contagious.
Herbert
John Fiorentino
You tell me Maggsy
John F.
"Maggsy" <davidma...@yahoo.com> wrote in message
news:5fd122ee-c198-4f61...@s28g2000vbp.googlegroups.com...
John Fiorentino
I already gave you a challenge in your other post.
BTW..........If you want to debate, that's ok with me. If you want to act
the fool, I really don't have the time.
John F.
"Robert Harris" <reha...@yahoo.com> wrote in message
news:reharris1-94EA5...@70-3-168-216.pools.spcsdns.net...
Anthony Marsh
> In article<4a1e73ae$1...@mcadams.posc.mu.edu>,
> "John Fiorentino"<johnfio...@optonline.net> wrote:
>
>> Anthony is essentially correct.
>>
>> You FIRST need to establish a fragment actually hit the curbstone. That
>> hasn't been done conclusively.
>>
>> It would also be nice to firmly establish that Tague had a "cut" and some
>> "blood" on his face. That also has never been done. In FACT the available
>> testimony indicates otherwise.
>>
>> John F.
>
> ROFLMAO!!
>
> So, at the same time that shots were being fired in the direction of
> Tague, a car threw a wheel weight, creating a fresh lead smear on the
> curb, near Tague and then he walked into a wall causing himself to bleed,
> but then just happened to forget about it.
>
That is not the wacko LN theory. They propose a wheel weight could have
caused it at any time before or after the shooting.
One guy said he cut himself shaving, but apparently he forgot to bleed
until he got to Dealey Plaza.
Anthony Marsh
>
> Anthony is essentially correct.
>
> You FIRST need to establish a fragment actually hit the curbstone. That
> hasn't been done conclusively.
>
The spectrographic analysis shows the mark was caused by a bullet lead
core.
> It would also be nice to firmly establish that Tague had a "cut" and
> some "blood" on his face. That also has never been done. In FACT the
> available testimony indicates otherwise.
>
No such testimony exists.
John Fiorentino
First, I'm sorry you're "worried."
In any event, your comment re: the lead smear doesn't make any sense in
the context of demonstrating it was NOT a "wheel-weight" for instance.
Second:
I've read the WCR several times, I know what it says re: Tague.
Now here's the challenge:
Provide documentation, (testimony, etc.) which shows Tague had a "cut"
(other than the one that was already there) and some "blood" on his face.
Here's the caveats (No refs from trade books, internet sites, or Tague
himself)
OK?
John F.
<a1e...@verizon.net> wrote in message
news:a22efa4c-9a73-44fb...@3g2000yqk.googlegroups.com...
John Fiorentino
(I've already agreed with you once this week, I think that's my limit......
;-)
John F.
"Anthony Marsh" <anthon...@comcast.net> wrote in message
news:4a1ff35b$1...@mcadams.posc.mu.edu...
Anthony Marsh
> On May 28, 9:11 pm, "John Fiorentino"<johnfiorent...@optonline.net>
> wrote:
>> Anthony is essentially correct.
>>
>> You FIRST need to establish a fragment actually hit the curbstone. That
>> hasn't been done conclusively.
>
> The spectrographic analysis of the curb smear indicated lead with a trace
> of antimony. This composition excludes everyday sources of lead. In fact
No, it doesn't. Different products use antimony to harden lead. Such as
wheel weights. In fact some hand loaders melt down wheel weights to pour
lead bullets. Some are now using 3-4% antimony.
Linotype at 12% Sb, Monotype at 19% Sb, and Foundry Type at 23% Sb are
too brittle to be practical for bullets.
Car batteries are hardened with antimony, but should not be used for
casting bullets.
> the FBI could not even suggest an alternative to the lead of a unhardened
> bullet.
>
The Spectrographic analysis will not tell you the percentage of antimony
which had been used in the bullet lead. It could be unhardened or hardened.
I like when WC defenders think the WC was lying.
> Herbert
John Fiorentino
I agree with Anthony again!
Is this history in the making?
John F.
"Anthony Marsh" <anthon...@comcast.net> wrote in message
news:4a20650e$1...@mcadams.posc.mu.edu...
Anthony Marsh
> Well, if you want to debate this civilly, let me know.
>
> First, I'm sorry you're "worried."
>
> In any event, your comment re: the lead smear doesn't make any sense in
> the context of demonstrating it was NOT a "wheel-weight" for instance.
>
Well, I had assumed that once a certain WC nut had left this newsgroup I
wouldn't see anyone seriously arguing that the mark was caused by a wheel
weight. Are you willing to pick up where he left off?
John Fiorentino
Yep, that's me!
I'm not proposing it was a wheel weight. I'm simply stating that by any
proper investigative technique the presence of traces of antimony does not
indicate a "bullet" nor rule out a wheel weight.
I AM proposing that Tague is less than credible, and has been supported by
over 40 years of misconceptions.
ALL of the statements re: a "cut" and "blood" on his face, came from Tague
himself.
Everyone uses Tague's own testimony to support his assertions, and then
credits Walthers with making them!
Walthers testimony was in FACT diametrically opposed to Tague's on the cut
and blood issue. Walther's NEVER indicated Tague was cut or bleeding.
John F.
"Anthony Marsh" <anthon...@comcast.net> wrote in message
news:4a21664a$1...@mcadams.posc.mu.edu...
a1e...@verizon.net
wrote:
> Well, if you want to debate this civilly, let me know.
>
> First, I'm sorry you're "worried."
>
> In any event, your comment re: the lead smear doesn't make any sense in
> the context of demonstrating it was NOT a "wheel-weight" for instance.
My comment assumed that you knew more than you actually know. In
particular, a spectrographic trace represents a concentration of less than
one part per thousand. However, the lead alloys of everyday objects,
including a wheel-weight, contain a few parts of other elements per ten
parts of lead. In other words, the spectrographic analysis would have
easily identified an alloy of lead as opposed to its finding of nearly
pure lead.
If you insist upon promoting the nonsense of a everyday object as the
source of the curb smear then it behooves you to show us a commercial lead
alloy with a purity comparable with Ivory Soap
>
> Second:
>
> I've read the WCR several times, I know what it says re: Tague.
>
> Now here's the challenge:
>
> Provide documentation, (testimony, etc.) which shows Tague had a "cut"
> (other than the one that was already there) and some "blood" on his face.
>
> Here's the caveats (No refs from trade books, internet sites, or Tague
> himself)
>
> OK?
Not OK, John.
The DPD and the FBI investigated the assassination. So It was their job to
provide the documentation. For example, the authorities had the
responsibility for determining who radioed the message, "I have one guy
that was possibly hit by a ricochet from the bullet off the concrete" and
asking what observations prompted their transmission?
Herbert
a1e...@verizon.net
wrote:
> "WC nut"
>
> Yep, that's me!
>
> I'm not proposing it was a wheel weight. I'm simply stating that by any
> proper investigative technique the presence of traces of antimony does not
> indicate a "bullet" nor rule out a wheel weight.
Give us an example of a lead item other than an unhardened bullet with
a trace level of no more than a few parts per thousand of antimony.
Herbert
John Fiorentino
It is perfectly plausible that a wheel weight might contain a "trace of
antimony."
John F.
<a1e...@verizon.net> wrote in message
news:300f3623-d0b8-45c8...@n4g2000vba.googlegroups.com...
John Fiorentino
John F.
<a1e...@verizon.net> wrote in message
news:09502102-cec1-47c7...@r34g2000vbi.googlegroups.com...
a1e...@verizon.net
wrote:
Industry standard codes specify a minimum of 80,000 parts per million of
tin for the lead alloy used for wheel weights. So tell us why the
spectrographic analysis did not report an abundance of tin or some other
alloying metal if another everyday object were the source of the lead
bearing smear?
Herbert
> Anthony Marsh has already done that.
>
> It is perfectly plausible that a wheel weight might contain a "trace of
> antimony."
>
> John F.
>
> <a1ea...@verizon.net> wrote in message
John Fiorentino
report on Tin?
As for "government standards" and wheel weights, I really have no comment.
John F.
<a1e...@verizon.net> wrote in message
news:48444c95-9cfc-4df7...@21g2000vbk.googlegroups.com...
Anthony Marsh
> I haven't the foggiest notion. Perhaps for same reasons Guinn didn't
> report on Tin?
>
I'd like to see where he gets all this.
> As for "government standards" and wheel weights, I really have no comment.
>
>
He may have read something and gotten confused. Maybe the article was
about babbits.
But he may read something about current regulations and not realize that
they were not in effect in 1963.
Anthony Marsh
> On May 30, 11:29 pm, "John Fiorentino"<johnfiorent...@optonline.net>
> wrote:
>
> Industry standard codes specify a minimum of 80,000 parts per million of
> tin for the lead alloy used for wheel weights. So tell us why the
First I'd like to see you back up that claim with a citation.
Second I'd like to see you prove that was the case in 1963.
> spectrographic analysis did not report an abundance of tin or some other
> alloying metal if another everyday object were the source of the lead
> bearing smear?
>
The type of spectrographic analysis the FBI used back in 1963 would not
be able to tell you the relative amount present, only whether or not it
was detectable. They did detect antimony.
John Fiorentino
John F.
"Anthony Marsh" <anthon...@comcast.net> wrote in message
news:4a244fba$1...@mcadams.posc.mu.edu...
John Fiorentino
John F.
"Anthony Marsh" <anthon...@comcast.net> wrote in message
news:4a24...@mcadams.posc.mu.edu...
a1e...@verizon.net
wrote:
> I haven't the foggiest notion. Perhaps for same reasons Guinn didn't
> report on Tin?
Guinn did not report many things. For example, the copper used for a
bullet jacket is never pure copper. Instead they use a copper-zinc alloy
for brass jackets or use a copper-tin alloy for bronze jackets. In each
case the jacket has a specified range of concentrations of the alloying
metal. Further each component of the basic alloy contains traces of
chemical similar elements. For example silver and gold are the common
trace elements for copper while cadmium and mercury are trace companions
of zinc. Tin and lead belong to the same chemical family that includes
carbon, silicon and germanium. These considerations show the range of
overlooked means of comparing copper bearing materials of the various
fragments found in the limousine.
Herbert
a1e...@verizon.net
wrote:
> I think that makes 3 times this week I have to agree with you Tony!
>
> John F.
Birds of a feather flock together.
Herbert
>
> "Anthony Marsh" <anthony_ma...@comcast.net> wrote in message
>
> news:4a244fba$1...@mcadams.posc.mu.edu...
>
>
>
> > On 5/31/2009 10:27 PM, John Fiorentino wrote:
> >> I haven't the foggiest notion. Perhaps for same reasons Guinn didn't
> >> report on Tin?
>
> > I'd like to see where he gets all this.
>
> >> As for "government standards" and wheel weights, I really have no
> >> comment.
>
> > He may have read something and gotten confused. Maybe the article was
> > about babbits.
> > But he may read something about current regulations and not realize that
> > they were not in effect in 1963.
>
> >> John F.
>
> >>> Herbert- Hide quoted text -
John Fiorentino
John F.
<a1e...@verizon.net> wrote in message
news:28453250-1b1e-4bae...@g20g2000vba.googlegroups.com...
a1e...@verizon.net
> On 5/31/2009 10:27 PM, John Fiorentino wrote:
>
> > I haven't the foggiest notion. Perhaps for same reasons Guinn didn't
> > report on Tin?
>
> I'd like to see where he gets all this.
>
> > As for "government standards" and wheel weights, I really have no comment.
>
> He may have read something and gotten confused. Maybe the article was
> about babbits.
> But he may read something about current regulations and not realize that
> they were not in effect in 1963.
>
>
>
> > John F.
My references were the "Handbook of Chemistry and Physics," 37th
Edition and "Constitution of Binary Alloys" by Hansen. These works
date from the late and early fifties.
So Marsh, name your source(s) for the use of lead with just a trace of
other substances for wheel weights or any other everyday object. Of
course citing an antique lead pencil does not qualify as a everyday
object. So good luck in trying to convince any rational person that
they use in everyday objects a cumulative poison that rubs off on
hands when in the nearly pure state lead.
Herbert
John Fiorentino
John F.
<a1e...@verizon.net> wrote in message
news:c589e3dd-eaa1-45a6...@m19g2000yqk.googlegroups.com...
Anthony Marsh
> On Jun 1, 7:25 pm, Anthony Marsh<anthony_ma...@comcast.net> wrote:
>> On 5/31/2009 10:27 PM, John Fiorentino wrote:
>>
>>> I haven't the foggiest notion. Perhaps for same reasons Guinn didn't
>>> report on Tin?
>>
>> I'd like to see where he gets all this.
>>
>>> As for "government standards" and wheel weights, I really have no comment.
>>
>> He may have read something and gotten confused. Maybe the article was
>> about babbits.
>> But he may read something about current regulations and not realize that
>> they were not in effect in 1963.
>>
>>
>>
>>> John F.
>
> My references were the "Handbook of Chemistry and Physics," 37th
> Edition and "Constitution of Binary Alloys" by Hansen. These works
> date from the late and early fifties.
>
Somehow I don't believe you are characterizing them accurately.
> So Marsh, name your source(s) for the use of lead with just a trace of
> other substances for wheel weights or any other everyday object. Of
I said antimony. I could also have cited other elements, but did not.
http://www.lasc.us/HeatTreat.htm
http://www.thehighroad.org/showthread.php?p=5420774
http://www.surplusrifle.com/reloading/alloy2/index.asp
http://home.earthlink.net/~potomac008/Lead%20Alloys.htm
http://books.google.com/books?id=vVhpurkfeN4C&pg=PA46&lpg=PA46&dq=antimony+car+batteries&source=bl&ots=sGhqiHtpSq&sig=gUbWwqbkjs0orErgEG6d2469nn8&hl=en&ei=gcglSsCSJNbgtgeFjZnpBg&sa=X&oi=book_result&ct=result&resnum=9
http://en.wikipedia.org/wiki/Car_battery
http://www.answers.com/topic/antimony
You need to get out into the real world some time.
> course citing an antique lead pencil does not qualify as a everyday
> object. So good luck in trying to convince any rational person that
A lead pencil contains no lead. It is graphite, carbon.
http://www.pencils.com/pencil-information/pencil-lead
http://en.wikipedia.org/wiki/Graphite
> they use in everyday objects a cumulative poison that rubs off on
> hands when in the nearly pure state lead.
>
That is why the EPA is on a campaign to remove lead from products. China
has a habit of using lead in products it sells to the US to poison us.
Anthony Marsh
> On May 31, 10:27 pm, "John Fiorentino"<johnfiorent...@optonline.net>
> wrote:
>> I haven't the foggiest notion. Perhaps for same reasons Guinn didn't
>> report on Tin?
>
> Guinn did not report many things. For example, the copper used for a
> bullet jacket is never pure copper. Instead they use a copper-zinc alloy
> for brass jackets or use a copper-tin alloy for bronze jackets. In each
So what? Guinn was not asked to analyze the copper jacket, only the
lead, by NAA. NAA is not that useful for analyzing copper.
Nevertheless, you can see that copper was removed from the jacket of CE
399 and it was analyzed. Frazier knew that the jacket was not pure
copper. He knew that it was gilder's metal.
> case the jacket has a specified range of concentrations of the alloying
> metal. Further each component of the basic alloy contains traces of
> chemical similar elements. For example silver and gold are the common
> trace elements for copper while cadmium and mercury are trace companions
> of zinc. Tin and lead belong to the same chemical family that includes
> carbon, silicon and germanium. These considerations show the range of
> overlooked means of comparing copper bearing materials of the various
> fragments found in the limousine.
>
The FBI analyzed the copper jackets and the results were not conclusive
since they used only optical spectroscopy.
> Herbert
a1e...@verizon.net
> On 6/2/2009 11:45 AM, a1ea...@verizon.net wrote:
>
>
>
>
>
> > On Jun 1, 7:25 pm, Anthony Marsh<anthony_ma...@comcast.net> wrote:
> >> On 5/31/2009 10:27 PM, John Fiorentino wrote:
>
> >>> I haven't the foggiest notion. Perhaps for same reasons Guinn didn't
> >>> report on Tin?
>
> >> I'd like to see where he gets all this.
>
> >>> As for "government standards" and wheel weights, I really have no comment.
>
> >> He may have read something and gotten confused. Maybe the article was
> >> about babbits.
> >> But he may read something about current regulations and not realize that
> >> they were not in effect in 1963.
>
> >>> John F.
>
> > My references were the "Handbook of Chemistry and Physics," 37th
> > Edition and "Constitution of Binary Alloys" by Hansen. These works
> > date from the late and early fifties.
>
> Somehow I don't believe you are characterizing them accurately.
>
> > So Marsh, name your source(s) for the use of lead with just a trace of
> > other substances for wheel weights or any other everyday object. Of
>
> I said antimony. I could also have cited other elements, but did not.
>
>
> You need to get out into the real world some time.
>
> > course citing an antique lead pencil does not qualify as a everyday
> > object. So good luck in trying to convince any rational person that
>
> A lead pencil contains no lead. It is graphite, carbon.
>
> http://www.pencils.com/pencil-information/pencil-leadhttp://en.wikipedia.org/wiki/Graphite
>
Now a pencil contains graphite. However, the instrument derived its name
from the earlier use of soft lead. For this reason, I disqualified citing
an ANTIQUE pencil as an everyday object containing a trace of other
substances.
Herbert
a1e...@verizon.net
>
You are naive. The FBI needed inconclusive results so used optical
spectroscopy. This technique was no better than distinguishing brass from
bronze, which could have been done in a high-school chemistry lab. They
place a known metal and the unknown in a beaker containing dilute
sulphuric acid. Measurement of the voltage developed between the known and
unknown permits calculation of the electrochemical potential of the
unknown. Next they consult a table and read the name of the formerly
unknown metal or alloy.
During a closed meeting of the WC, Mr. Rankin gave us a hint of what
people in the real world were doing.
Source: Executive Session of January 27, 1964
"Now , the bullet fragments are raw, part of them are now, with the Atomic
Energy Commission, who are trying to determine by a new method, a process
that they have, of whether they can relate them to various guns and the
different parts, the fragment: Whether they are a part of one of the
bullets that was broken and came out in part through the neck, and just
what particular assem of bullet they were part of. They have had it for
the better part of two and a-half weeks and we ought to get an answer."
In 1964, the newly refined process was mass spectroscopy. They used
electric and magnetic fields to separate the elements and their isotopes
so that the gaseous spectroscopic techniques analyzed highly purified
samples.
I suspect the AEC data guided the FBI in selection of the technique to
produce the inconclusive results.
Herbert
Anthony Marsh
No, read the damn citations.
> Herbert
Anthony Marsh
You would suggest that they use flame spectroscopy on the samples? What
else did they have available in their lab that night? They were under
pressure to report results quickly.
> bronze, which could have been done in a high-school chemistry lab. They
> place a known metal and the unknown in a beaker containing dilute
> sulphuric acid. Measurement of the voltage developed between the known and
> unknown permits calculation of the electrochemical potential of the
> unknown. Next they consult a table and read the name of the formerly
> unknown metal or alloy.
>
> During a closed meeting of the WC, Mr. Rankin gave us a hint of what
> people in the real world were doing.
>
> Source: Executive Session of January 27, 1964
>
> "Now , the bullet fragments are raw, part of them are now, with the Atomic
> Energy Commission, who are trying to determine by a new method, a process
> that they have, of whether they can relate them to various guns and the
> different parts, the fragment: Whether they are a part of one of the
> bullets that was broken and came out in part through the neck, and just
> what particular assem of bullet they were part of. They have had it for
> the better part of two and a-half weeks and we ought to get an answer."
>
NAA for the lead, not the copper.
> In 1964, the newly refined process was mass spectroscopy. They used
The assassination happened in 1963.
> electric and magnetic fields to separate the elements and their isotopes
> so that the gaseous spectroscopic techniques analyzed highly purified
> samples.
>
That is a destructive test, isn't it?
> I suspect the AEC data guided the FBI in selection of the technique to
> produce the inconclusive results.
>
Silly. We are talking ONLY about the copper jackets now.
> Herbert