Fisherman & farmer. [volume] (Edenton, N.C.) 1887-19??, 1897-04-16
LIGHT OF THE FUTURE.
The Study Of Light Pro-
ducing Animal and -
Vegetable Life.

The incandescent electric ligh
wastes and throws away 90 per cen
of the energy utilized, only 2 pei
cent appearing in the shape of lighr
rays. On the other hand, the light
emitted by the FREELY and the glow
worm wastes but per cent In 9th
er words, the animal light is 4s
times cheaper.
In the course of recent expert
ments DR.. Raphael Dubois of Lyons
has made elaborate studies of a great
many kinds of light producing crea
lures There is no lack of them in
nature-in fact, thousands of spe.
cies possess this curious photogenic
power. Not few plants have II
also, and among the latter may be
mentioned certain mushrooms that
grow in Brazil and Australia. Some
of them give enough light to make
it possible to read by the aid of a
single specimen. The luminosity
frequently seen in autumn in the
forests on dead leaves or on bits of
wood is due to fungi. The yellow
flowers of the nasturtium emit q
small amount of light. But in the
animal kingdom the torchbearers
assume an immense variety of
forms, from the minute organisms
that are responsible for much of the
ocean & phOSphOrescence to the deep
sea fishes that carry lamps of their
own and form endless tOrchlight
professions through tho otherwise
black and gloomy marine abysses.
Many jellyfshes are luminous,
and SO are some of the starfishcs a
few earthWOrms are light givers,
and numerous crustaceans have a
luminosity of their own. One kind
of shrimp has a brilliant circle sur
rounding the eye, which is actually
III luminous socket. A European
species of Thousand legs" emits
light i'll autumn. But no animals
are better light givers than certain
insects, and even the eggs of some
of these are luminous. From gen
Grafton to generation the light bear
ing creatures transmit the torch that
is never extinguished and which
seems to have been lighted at the
very dawn of creation. AS for in
sects, very minute species, found
in parts of Europe, sometimes makes
the surface of the ground luminous
over considerable areas. congregat-
ing in incOncelvable numbers.
The eggs of the glOWworm are
luminous, and it is the same way
with the FREELY of tropical America.
The larva of the FREELY carries with
it at birth the torch transmitted to
the egg by its ancestors. Indeed it
has several lights, one on each seq
ment of its body. These luminous
spots may be lighted and extinguish-
ed successfully, like the gas burners
of stairway swept. by the wind,
and it it is very curious spectacle
to see two of the larvte struggling
together and twisting about while
emitting flashes of light. Imagine
what the effect would be if the com
batants were as large as pythons!
In the adult state the FREELY has
three lanterns-tWO on the back and
one on the belly. When the belly
lantern, which is the brightest of
the three, has been carefully sepa-
rated from the body, dried and pull
verified, it still gives out light when
a drop of water is let fall upon the
powder. This is only one of many
experiments made by
DR.. Dubois. He has succeeded in
photographs by the freely
light, using very sensitive plates
Rene Bache in Boston TRANSCRIPT.
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