Evening star., 1932-01-21

@. How many people are employed
In the Library of Congress?-A. M. r.
A. The normal staff of the library
proper (as distinct from the force
under the superintendent Of library
building) is 63l.
@. If four cars are following each
other, the first going 40 miles an hour.
how fast would the fourth car be
going2-R. o. G.
A If the first car is going 40 miles
an hour, the speed of the fourth car
would be 20 miles an hour, if equal
distances are maintained between the
cars.
@. How many people have lived in
the world since its creation?-F M
A. It has been estimated that In the
approximately 1900 generations since
1000 B. C. 1000 900, 100000 people
have lived in the world 1t is impoS-
sible to state, even as an estimate. the
number of human inhabitants of the
earth since its creation, or, more &C
curately, since the beginnings of human
life. since this has not yet been def
nltely dated.
Q. Is hard coal form of rock?-
E. d.
A. Coal is not rock. 1t is black
or broWnish black solid combustible
mineral substance formed by the par
tial decomposition of vegetable matter,
without free access of air, under the
influence of moisture and, in many
cases, of increased pressure and tenn
perature.
@. What are bar pilots on the Mis-
sissippi River at New Orleans?-S. L.
| A. They are the persons who pilot
ships at the entrance of the Missis-
sippi River to the Gulf of Mexico. In
addition there are river port pilots for
the port of New orleans and branch
bar pilots.
c. What proportion of the diet Of
the Chinese is made up OF animal
products?-R. c.
A. About ! per cent of the food en-
ergy of the Chinese comes from animal
products About 80 per cent Is derived
from grain.
@. Tell something about the in-
f1uence OF American turfmen on British
horse racing.-D. D.
A. No American horse had ever
raced in England until Richard Ten
Brock, in 1885, took stable across.
His great mare Prioress, in a field OF
81 starters, ran q dead heat with Ell
Hakim and Queen BeSs in the Cesare-
wich, a course 2 miles furlongs and
% yards. In the run-off the American
horse won by length in minutes ID
seconds. From that time on American
turfmen began taking prominent part
in British racing, among the more
prominent being James r. Keene,
Pierre Lorillard, August Belmont, Rich.
ard Croker and Clarence Mackay.
Q. How long is the Grand Canyons
A. M.
A. The Grand Canyon of the State
of Colorado has total length OF about
2G0 miles from head of Marble Gorge,
near the northern boundary of Arizona,
to Grand Wash Cliffs, near the Nevada
line. It's most impressibly beautiful
part, 105 miles long, lies within the
Grand Canyon National Park, in North
ern Arizona The width varies from
S to Is miles, while the maximum
depth is more than mile. The char
acteristic portion so often seen in pic
lures is the point near the town of
Grand Canyon, Ariz., where the gorge
is almost IS miles from rim to rim.
c. Does the boil weevil fly at night?
Is 1t attracted by light?-J. w.
A. The boil weevil is entirely help
less and without power of locomotion
in it's larva stage when 1T infests the
scales and bolls of cotton plants. In
its adult stage it moves from place to
place by flight and does fly at night as
well as in the daytime However, the
boil weevil, unlike other weevils of the
same group Of insects, is not attracted
by light and consequently can not be
shared In this manner