The Anaconda standard. [volume] (Anaconda, Mont.) 1889-1970, 1899-10-14

graph geology. 1t bore upon the reduc-
ton of copper sulphates. Mr.. klng SAID
that it was a correct statement.
Il ask you if organic matter VIII pre-
cipitate copper sulphates into copper
sulphides?" said Mr. Hughes.
mot precipitate, but reduce, copper
sulphates into sulphides," said the wit
ness.
Well, reduce, if you like it better"
Yes
Mr.. Hughes read another excerpt,
which Mr.. King said expressed the &C
cepted view of the matter discussed.
This also bore upon the subject men
toned.
You spoke about a substance called
covellite as being an element concerned
in secondary deposition. DO you find
that in an anonymous form?" said Mr..
Hughes.
Il have not found 1T that way" said
Mr.. King.
Mr.. King, will you give us an idea
of how the primary solutions came up
in the assures to make the sulphide de-
posits?"
well, sir, 1 have not the least idea.
The operations of nature and the con-
ditions Of heat and pressure cannot be
duplicated in laboratory. Hence that
phenomenon cannot be investigated"
Then your chemical experiences in
w.
ken to preclude the possibility of the
reactions I mentioned having taken
placer"
mo, sir; but I do not think that
there is any one who knows anything
about this thing
The witness said that in the branch
of science covering this subject he
thought he had advanced little be-
yond any published authority on the
subject.
will you tell US what that subject
is? You have rejected our authorities,
and we should like to know where you
have acquired knowledge that no one
else has" said Mr.. Hughes.
You put me to blush, Mr.. Hughes.
But if you insist, will explain. I pub
lished a discussion of the age of the
earth in the American Journal of
Science in which the age of the earth Is
determined by consideration Of pres
sure and heat" said Mr.. King.
Mr. Geikie investigated that subject
also, did he not?"
mo, sir; not that subject
What other subjects are there that
you have gone farther into than any
published authority"
There are others. But they are not
published, and I have no right to name
them"
Mr. King declared that in his opinion
the modes OF dynamic actlOn IN the
depths of the earth are absolutely I'M
movable.
Mr.. Hughes read some more excerpts
from geologic books that related to the
chemical action of minerals in the
earth and bore upon the deposition of
copper ores. The evolution of sulphur
cited hydrogen was included in this.
Mr.. King agreed with the statements
contained in the excerpts, but criticised
one particular.
rs covellite a stable or unstable min
eral as found in nature?" asked Mr..
Hughes.
1T is not stable, yet it is not very I'M
stable" said Mr.. King.
How stable is it in comparison to
other minerals?"
1T is less stable than copper
pyrites."
Mr.. King. will you tell us what the
minerals of quartz porphyry are?"
"Of all quartz porphyry? That's
rather too big contract. All of the
minerals of quartz porphyry cannot
even be determined by an optical ex-
animation. If you want to know what
quartz porphyry contains in al general
way I can tell you. There is feldspar
and quartz ground, and the potash us
ually exceeds the soda. Then there is
phenocryst or crystals of quartz, and