Evening star. [volume] (Washington, D.C.) 1854-1972, 1931-09-05

Washington is the worlds greatest
storehouse OF all kinds OF knowledge.
You can draw on 1t free of charge
through our Bureau there. Any question
OF fact you may aCk will be answered
promptly in a persona, letter to you.
Be careful to write clearly, give your
full name and address and inclose two
cent stamp for reply postage. Send your
inquiry to The Evening Star Informs-
ton Bureau, Frederic J. Haskin, Direc-
tor, Washington, D. C.
Q. Will the DO-X go on around the
world or return across the Atlantic to
Germany?-M. M.
A. Present plans indicate that this
gigantic airplane will return to GEL
many across the Atlantic.
@. Are there as many Negroes In the
North as there are in the South?-B. E.
A. BY no means. About nine and one
half million are in the South and two
and one-half million in the North
The Negro population in the North is
increasing rapidly owing to migration
from the South, while In the South it is
little more than holding its own.
@. At what point was the Mississippi
River first seen by white man?-M. H.
"a ~ wac 1CdIllCd al 4OI1 Wy ICl
nando de Soto near the present site of
Memphis, Tenn.
O. Does an electric bulb become less
efficient when old-that is, Is more cur
rent used for the amount Of light pro-
duced?-S. w. F.
A. The Bureau Of Standards says that
an electric light bulb deteriorates With
age and becomes less ef1cient-that Is, 1t
gives less light in proportion to the cur
rent consumed. Minute particles of the
fllament are deposited on the interior
Of the bulb.
Q. Who wrote THE Heavenly Twins?
w. S.
A. 1t was written by Sarah Grand,
the pseudonym of Frances E. Clarke
McFall. 1t was published in 1893.
@. Please name the different kinds Of
cloudS.-D. F.
A. The terms used to describe the
various cloud formations are: Cirrus
detached cloud of delicate appearance,
generally white; cirro-Stratus-thtn sheet
OF whitish cloud; cirro-cumulus-mac
erel sky: alto cumulus-larger rounded
masses, white or grayish; alto-stratus-
dense sheet of gray or blush cloud:
strato-cumulus-large lumpy masses or
rolls of dull gray cloud; nimbus dense
layer Of dark cloud with ragged edges
from which steady rain or snow usually
falls; woolpack" or "cauli-
flower cloud; cumulo- nimbus-thunder
cloud or shower cloud, great masses
OF dark clouds rising in form of noun
tainS or towers.
@. When a foreigner applies for a
United States patent, can he use his own
language?-T. G..
A. When an application is made for
United States patent all data must
be submitted in the English language.
Q. Is the ball and chain still used
in prisons?-S. S.
A. In some cities and States the
practice of attaching a ball and chain
to the legs Of prisoners is still in force.
This, however, is not done except to
refractory prisoners-those who will
make some attempt to escape and to
those whose dispositions are very un-
certain and who frequently cause strife
and alterations.
@. Please describe the Harding Me-
morial.-J. T. S.
A. 1t is said that the 100000 Hard
ing Memorial at Marion, Ohio, is
among the finest of its kind in the
world. 1t is a circular building l02
feet in diameter and 81 feet high. set
in a l0-acre Handicapped park. There