Evening star. [volume] (Washington, D.C.) 1854-1972, 1911-04-02

feet of pure air. The old boy smiled, and,
of his wonderful ability. Then he took me
to boys vacated room and told me to wet
my finger and rub my nostrils with it and
sniff. Lo and d!-where before there
seemed no faint in the atmosphere was now
detected that smell of old tobacco smoke.
Since then | have taught school myself and
have used the trick occasionally; for expert
me1 tai purposes entirely, however.
Il have also sought the scientific explana-
ton; but with little success. 1t may, how
ever, be somewhat analogous to the process
of tasting. You know it is impossible to
taste anything that is not dissolved in water
or is not a liquid itself. So the moisture on
the nostrils must carry the small particles of
olfactory nerve ends, and thus make the
smell more apparent. At least this is the
only explanation / have ever found for the
phenomenon.
1.-THE same thing can also be used for de-
tecting other odors, and have found it USE
full on number of occasions for this purpose,
both in analytical chemistry when only
small particle of certain material is avail
able for analysis and in detecting faint per-
fume from flowers that are ordinarily quite
odOrleSS."
A Burning Glass In the Eye
TN the front part of each of Our eyes is
= convex lens of great power and clearness.
1t acts exactly like a burning glass. If a per-
son was made to look at the sun, say, for
half minute, his eye would actually start
to burn up. The lens would focus the rays
of the SUN on the retina, and that part of the
eye would Immediately scorch and later
would burn to crisp.
This can happen, however only when one
looks at the sun directly or in a mirror. If
one holds a pin between the sun and the eye
and looks at the pin, although the sun is in
direct line with the eye, and although its
rays are entering the eye, the eye is not hurt,
because the rays are not focused inside the
eyeball. This is the wonderful property the
lens has, that of focusing objects at differ
ent distances. The means by which it does
this are its power to change its curvature.
A New Cure for Nosebleed
IN many experiments carried on during the
L last few years it has been ascertained that
the mind controls to a wonderful extent the
flow of blood to any particular part of the
body. The following experiment has been
tried as many as ten times by me, and has
not failed once.
When the nose starts to bleed, Immediate
ly persuade yourself to believe that you are
running with all your might up the steepest
fight of steps you can think of or up high
hill; that is, just think of doing either of
these things and doing it fast. Think at the
same time that you are carrying heavy
piece of baggage with both hands, and add
thoughts Of any other bodily exertion. You
will be surprised at the quickness with which
your trouble ends.
The explanation is that when we really
start to run more blood is given to the AFTER
les supplying the muscles of the legs than
they were receiving while at rest. This has
been proved. AS the same thoughts in the
mind produce approximately the same bodi-
ly effects, if one merely thinks to run, but
does not run, the blood will 60 to the legs
anyhow, and away from the head, as desired.
There are many common experiences of
secretions started by thoughts. If one looks
at lemon and thinks of sucking it, his mouth
Immediately waters, and l have no doubt
that many people who read this will have
their mouths water from the simple reading.
Laurence Hodges
Three-Co1or Seeing
IN recent discussion before the Royal So