Evening star., 1919-05-11

standard Army rife and the liberty mo-
tor will be shown. together with other
military inventions.
Certain foibles and fancies Of other
wise wise great men that have reposed in the
cobwebbed receSses Of the patent office
and were as secret as the grave are to
be resurrected for the occasion.
Abraham Lincoln's Invention.
For instance. it is not generally known
that Abraham Lincoln, in momePt Of
alteration. turned inventor and de-
signed contrivance to facilitate the
passage Of vessels over shallow
be shown at the exposition. There
also will be the inventors model Of
the first automobile ever driven sue
cesSfuily by gasoline engine. now
one of the prizes of the patent office.
One display Of the department, that
OF the bureau of mines. will take on
decidedly militaristic hue in that
1T will depict the achievements of
this bureau as a war auxiliary, al
most its entire efforts during the war
being devoted to such problems. The
geophone. unique listening davice
which was invented by the French to
detect enemy tunneling and turned
over by the French to the bureau Of
mines and War Department for fur
ther development, win be shown in
by the bureau in the future in To-
eating entombed miners following an
explosion in mine. A further de-
velopment in the making fs a pro-
whfcn will enable the -entombed men
to talk through the solid earth.
The now famous gas mask, which
was perfected by bureau Of mines men
In cooperation with the Army. will
be shown. and an attempt made to
explain the limitations in its peace
use, enthusiastic returning soldiers
being inclined too often to ascribe the
miraculous to 1t.
Another part of the exhibit will give
ing the minerals required fer its man.
fracture, and following each step until
tie finished product IL reached The
war minerals will be shown and the
dramatic story Of the supplying Of these
minerals by the mining industry viii
be told. The methods Of the American
oil drillers, by which they were able.
to send continuous stream Of LIQUID
fuel to the war zone. smashing all
previously existing records, Will be
shown by working models
Departments Realty Dunines&
The department conducts the larxevt
realty concern in the world, under the
general jurisdiction Of it's general land
a dollar week. concern. it has not been
disturbed by the financial tides and has
already put behind il a record of many
years OF enort in the settling popuIat-
ing and development of the country Its
history. In which it has disposed Of mil
hons OF dollars. will be graphically
shown at the exposition. That pic-
turesaue part of its history the open-
ing OF townsites and Indian reserva-
tions. when the race was to the swift
and the lucky. and when towns and
cities sprung up over night in the
boundless west. will also be depicted.
To those who are interest ed in the
methods OF organization OF tre-
mendous governmental agency there
WIZ De an opportunity to learn some
thing of the land office scheme of do
ing things.
That the war has made some fuuda-
mental changes in the methods Of do
ing big things will be seen In the
exhibit arranged by the geological
survey. This organization already is
using the airplane in making topo-
graphic maps and expects that this
branch of the work Will grow rapid
ly. as this use of the airplane has al
ready resulted in better maps than
were possible through the old way.
All of this developed during the war
when the sirmen few over enemy ter
Fitory and photographed the coun-
fry turning their results over TO the
'rrvey men. who developed tine maps
The newer methods will be illustrated
at this exhibit
In line with Secretary Lanes farms-
for soldiers plan. the pension bureau
viii show that the country in the
past always has advocated such re-
wards. this bureau having adjudi-
Gated claims for lands and issued
land warrants to soldiers for more
than $4,000, 600 acres. Lincoln. Grant.
Sherman. Sheridan and FarraHut were
granted land for service through this
bureau and their applications for the
land. signed by themselves. will be
on exhibition. There will also be dis
played important historical papers
signed by George Washington.
Tomas Jefferson John Hancock.
benjamin. Franklin and by Lafayette.
1"hambeau and Won Steuben, com
ders OF Americas allies during
..e revolutionary war.
Is Building Alaskan Railroad.
The Interior Department has charge
81 The building of the government
-"!!road N -ilaska and there Will be
r-.os@I something of the pruG.ess be-
:t-s~ made in the penetration of that
t-4, r-..y- Cf,gnfry this advapc