Evening star., 1924-03-18

OMcial Opening.
Cuno II. Rudolph, president of the
Board of District Commissioners, will
oihclaily open the exposition at 3
oGiock tomorrow afternoon with a
ana with words of welcome to the
manufacturers and dealers who have
EXHIBITS on display. Then for six
Gays and nights the thousands of
radio enthusiasts in Washington and
contiguous territory will have an
opportunity to view the most preten-
ious and complete array of radio
apparatus ever assembled for public
exhibition.
American manufacturers, jobbers
distributors and Washington's leading
radio dealers will display the very
latest radio devices and equipment
me me primary purpose of this exposi-
tlon is to give members Of the radio
INDUSTRY an opportunity of showing
wireless equipment of approved quail
Ity, thus enabling the public to view
the most recent creations in radio
apparatus and to gain at first hand
a practical knowledge of the various
uses and services that radio is pre-
pared to render.
Government Exhibits.
Exhibits by the government depart
IneRcS, some of which have never been
On public view, will be an outstand-
Navy Department will have collec-
tion of receiving and transmitting
apparatus used on battleships, sub
marines and lighter-than- air craft
sounding apparatus; the Signal Corps
OF the Army will show the latest
types of heterodynes and super-hete-
rodynes; the Department, of Com
how radio inspectors police ,the air in
{quest of hams" who violate the code
'of ethics of the ether; the Depart
ment of Agriculture will portray with
its exhibit the development of the
radio weather and market service,
and the bureau of standards will
illustrate the work of it's scientists
in developing radio apparatus.
In addition to the government ex-
hibits. there will be on display radio
apparatus developed by Washington's
inventive geniuSes. Chief among them
will be the radio photography ma
chine of G. Francis Jenkins, by which
pictures may be sent on the Hertzian
waves with incredible speed.
Contest for Amateurs.
The amateur radio set builders have
not been overlooked, and prize con-
test will be conducted in connection
with the show. approximately $500
worth of radio equipment win be
awarded to the fans who construct
the best receiving sets.
Entertainment will play an impor-
tant part in the show. Program.
-Roxie," radios great impresario.
and his gang" from the CAPITOL The;
radio fans-are, of course, the lead
ing attraction. Their appearance at
the show, however, will not eclipse
the entertainment which will come to
the night of Monday, March "a. from
the studio of station WEAF in New
York, where Brooke Johns and Mary
Eaton, stars in the "Ziegfeld Follies,"
will give a special performance for
V. Llufrio, the three-in-one announcer.
vocalist and accompanist at WEAF,
also will take part in this unique
program. A special telephone circuit
the hall from station WCAP, where
it will be shot through scores of am
plifiers scattered throughout the big
auditorium.
dance orchestras, glee clubs, vocal
and instrumental artists whose voices
are familiar to all broadcast listeners
also will provide some or the enter
tainment- Besides, there VIII De Ten
cabinet and prominent government
officials, which will go out on the
ether waves through stations WCAP
and WRC.
Entertainment Program.
The elaborate entertainment pro-
gram has been arranged by Bob
Lawrence, whose Wednesday night
concerts are a regular feature on
WCAP'S broadcasts. The entertain
ment will be given during the after
noon and evening each day of the
show. sandwiched between demon
strations by the National Carbon
Company and lectures on the $25,VOO
Educational exhibit Of the Radio Cor
poration of America by George Clark,
the exhibit manager.
The musical organizations and vo-
cal and instrumental artists sched-
uled on the entertainment program
besides the Army, Navy and Marine
bands include Pete Macfas LAtglon
Band, the Sangamo Band, the Catholic
University Glee Club, the Columbian
University Mems Glee Club, the
George Washington University Dou-
BILE Male Quartet, Bob Carbauh, xylo-
phone soloist, and Miss Ruth Peter
Eoloist.
Among those who are scheduled to
speak are Secretary of Agriculture
wallace, Secretary Of Labor Davis,
Assistant Secretary of War Dwight
F. Davis, Assistant Secretary OF tho
Navy Roosevelt, John j. Tfgert, fed
eral commissioner Of education; Col.
c. II. Birdseye of the geological sur
vey and Admiral F. c. Ffllard.
10O Exhibition Booths.
One hundred booths have been
erected in Convention Hall for the ex-
l;kIA. %Ln inhhArS