Evening star., 1925-08-07
ANSWERS TO QUESTIONS
BY FREDERIC ]. HASKIN.

Prevention of Blindness says that
"any light may be good-whether II
be sun light, gas light or electric
light-provided there is enough of 1t,
that it is steady. and that it is prop
erly shaded or diffused. No light Is
good-whether natural or artificial
if it fiickers or is unsteady if 1t is or
insufficient or of too great intensity,
if its source, when on the level OF the
eye, is unshaded, or II 1t produces
glare
Q. Just what is the so-called law
of averages?'-M. A.
A. The law of averages aims TO
demonstrate that while the trend of
! human affairs cannot be forecast with
certainty, 1t can be worked out to
considerable extent arithmetically by
arriving at averages based on Stats
ties relating to the event. This law
Is not universally accepted by econo-
mists.
Q. Has Tom Mix's COW pony Tony
died?-B. n. NJ.
A. Tony Is quite all right, but he
is reaching an age when he must be
spared some Of the hard work he has
done. Mr.. Mix has had a colt in
| training for some time to share the
| arduous labors of the movies with
and he has just participated in his
first screen release.
Q. What is block tina. P. H.
A Block tin is tin cast in tngots.
The term also applies to pure TIN as
distinguished from tin plate. large
amount of tin is used for making roof
ing plates, but tin in such uses is
usually alloyed with lead, the result
hagn knnNEn technically
as terne sheets.
@. What are the principal flowers
that bloom in Florida?-O. {.
A. Among the innumerable varle-
ties are the hibiscus, the poinsettla'
oleander, bougainvillea, allamanda'
crepe myrtle, flame vine, Mexican
coral vine, orchid, hyacinth, MY,
Gamma and iris.
O. To what extent did the Assouan
Dam increase the amount OF fertile
| land in Egypt?-K. NJ. c.
A. 1t nearly doubled agricultural
Egypt, putting into use more than
6 ,000, 900 acres of new land.
Q. In what way is the water that
plants use held in the soil?-J. E.
A. The Bureau of Plant Industry
saws that water is held in the soil by
capillary attraction as a film on the
soil particles.
@. Does any freight reach Great
Lakes ports without transshipping
&C. Z.
A While the largest ocean freight
| ers cannot pass through the Welland
| Canal. smaller vessels do make the
| trip across the ocean, then through
| the Gulf of st. Lawrence. st. Law
I1 ol N
tario, Welland Canal, into Lake
| Erie and other lakes as desired.
@. What is the American Institute
of Cooperation? &C. T. B.
a. 1t is a new organization now
holding a session in Philadelphia.
Students are enrolled for the meet
| ing. and lectures and addresses are
made before them by men expert
enced and versed in the various
phases of cooperative buying and
selling. Such organizations now have
100000 members. and will transact
| 81 500 900 900 worth of business this
| year, approximately one-fifth of the
| total agricultural business.
Q. What per cent of the boys who
enter West Point are graduated from
the institution?-H. D. B.
A Since it's establishment in 1874,
about 55 per cent of the entrants
have been graduated.
Boys and girls should not oreriook
| the Information Bureau. IT cun help
them in hundred trays. Lit can dd-
| 1,ise them hotU TO get training in any
| trade or profession. II can giUe them
| information about the birds in their
I neigh borhood aud explain hoU 10
! build bird house. 1t con tell boys
| ho10 to raise rabbits, guinea pigs.
! pigeons aud other pets. and hotC to
sell these things protitGbIy. 1t can
| teach girls ho6 to make ne1C kinds Of
candy. We tcdnt the young folks TO
| get the habit Of calling on our Wash
| ington Bureau 1Chenever they need
| help. Send in gour question and In
close 2 cents in stamps for return
postage. address The Star Irtorn,d-
| tion Bureau, Frederic J. HdsEip, d.
rector, Ttcenty-frst and c streets
| northwest.