Evening star., 1925-01-28
ANSWERS TO QUESTIONS
BY FREDERIC J. HASKIN

O. How many trees are there in
Washington. D. c.. and what kinds
are represeuted-F. w.
A. There are about IG5,0ae trees in
the National Capital Practically
every kind of tree that will grow
In that climate fs found The main
varieties planted along the streets
and in the parks are sugar maple,
sycamore maple. red maple, elm. lin
den, sycamore ash, pin oak, honey
locust, gtnkgo and horse chestnut.
@. Which is the largest national
cemetery in this country?-J. c. M
A. The Arlington National Gene
terry is the largest national cemetery
in the United States. 1t has an area
of 46S1s acres.
q Why will a safety match ignite
when rubbed on glass. when it will
not on any other smooth surface2-
o. r.
A. Probably because the very
smooth and hard surface of the glass
makes the point of contact of the
match head small and the friction is
all at this small point. On a rougher
surfacs the match head Is worn of.
II the surface Is softer than glass the
head sinks onto IT enough to increase
the area Of contact and thus the heat
surface for the temperature at any
point to become high enough to ignite
the composition To light the match
on glass requires q quick sweeping
stroke with nrm pressure
Q. What is desert soap composed
of?-D NJ B.
A The yucca plant that grows in
desert regions is sometimes called
desert soap. II is used for a detergent
and for washing fine laees.
Q. What Is the omnibus pension
hill?-J. w. NJ.
A 1t is a bill granting special re-
lief to certain persons entitled to
pension. Congressman place names
of especially deserving cases on a
list and a bill containing these names
Is brought before Congress annually.
O. How many people and how
| many nations are there IN the world
today y?-G- A.
A The estimated population Of the
world is 1,74s,0ae, ,0ee There are
about 20 independent nations at the
present day.
O. Where is the Hudson River the
widest2-R. L F.
A. The greatest width of TIE Hud-
| point is just below Haverstraw, " Y.
O. have noticed a star which
rises about 8 o'clock in the southeast,
moves up and down. then goes side
ways. What causes. such a move
| ment?-J. g.
! A. The Naval Observatory says no
| such motion as you described in your
| letter Ia possible. A similar report
| which Prof Simon Newcomb once in
| vestigated, turned out to be due TO
I supposing that star which had just
| risen was identical with another
| which had been seen TO rise some
| time before and was really high up
| when the other rose.
| Q. How many dimes made in 1894
| are marked "S"HG. H b
| A The letter ''S'' is the mint mark
| Of the San Francisco mint. In 1ss4
| there were "a dimes made bearing
1 this mark
| O. Which is the smallest bird in
the world?-E. T. S.
A. There are two species of hum
ming bird which are practically the
/ same size-they are found in parts of
/ Costa Rica and the West Indies.
l'Helena's Humming Bird" however
IS considered the smaller Of the two.
1t is found In Costa Rica~
| Q. Please give pronunciation of the
name of a city in France spelling
| "Pau."-R NJ. &.
| A. 1t is pronounced like the English
| name Poe.
\ fef'r ssks,a-ass- =
L q. Why do leaves fall from a,-rub-
/ ber plant which is growing indoors
t-P. g. II.
{ & IL is proha bly, due to the fact