The Dallas express. [volume] (Dallas, Tex.) 1893-1970, 1920-05-22

According to our promise in this
weeks issue of The Dallas Elk
press, we take pleasure in hand
ing to you another important lee
ture on OIL and Petroleum which
is gladly given to us by Mr.. Hainey
for our paper and the same is pub
lished by the consent for the bene-
fit of the public and especially our
race.
Petroleum ngs:-Springs of
which the waters contain a mixture
OF petroleum or rock oil, which is
composed of hydrogen and carbon
ana the various minerals allied to
II, such as naphtha and asphalt of
mineral pitch, which are very num-
erous. All these substances saws
Mr.. Hainey, are bitumen. Some. like
petroleum, being fluid. others sup
posed to be of organic origin de-
rived partly from terrestrial, partly
from marine plants and sometimes
from animal remains; for portions.
says Mr.. Hainey, of the tissues of
various marine animals of low grade
are destitute of nitrogen and very
similar In mineral composition to
the woody fibre of the plants. The
probability in some cases of an ami
NAL origin has been especially in
ferred from the beds of the low
Silurian of New York The anthracite
of this ancient rock says Mr.. Hainey,
is an inspissated mineral oil. Pc
troleum is found in formations of
every age from the lower Silurian
up to the tertiary. But a large
number of oil wells of the United
States which have lately attracted
so much attention, are in carbonifer-
GUS and devonian rocks. In some
instances, the petroleum filters slow
ly into the wells from the porous
strata around which are saturated
with It, While at other times. The
boring instrument seems to strike
upon fissure communicating with
a reservoir which furnishes at once
great volumes of oil.
The great pitch lake of Trinidad
is situated in a tertiary strata,
chiefly upper miocene but partly
perhaps lower pliocene. The as
phalt is derived from bituninous
shales containing vegetable remains,
which are greater. Part of the in
habited surface of the planet may
still sometimes be seen in the pro-
cess of formation, with its or
ganic structure more or less oblit-
Grated. Occasionally the bituminous
substances become plastic and even
oily and rises to the surface. Such
changes from oil ito pitch may be
brought about partly by the evap-
Grafton of the volatile ingredients |
and partly by oxidation from the |
air. Captain Mallett observes that
near Cape La Brays in the island |
of Trinidad, fluid bitumen sometimes
oozes out from the bottom of the
sea and arises to the susface. The
same author quotes Gumilla as stat
ing in his description of Orinoco,
that about seventy years ago, a shot
of land on the western coast of
Trinidad near half was Immediately
replaced by small lake of pitch
to the great terror of the inhabi-
tants. A similar subsistence at an
earlier period may probably have
given rise to the great pitch lake
of Trinidad the cavity having be-
come gradually filled with asphalt.
Every geologist is familiar with the
odor emitted from what is called
fetid limestone, when first broken.
The Niagara limestone Of the upper
Silurian group in America is some
times so impregnated with bitumen
that the substance when the stone
is burned for lime, flows from the
Kilu like tar.
Now remember that Mr.. G. s.
Hainey is representing the Booker
T. Oil Company for the Colored
people of Texas and the shares are
$1.00 each par value. So be
loyal as q race man or woman and
call or write him at 1919 State ST.,
Dallas, Texas.