Grand Forks herald. [volume] (Grand Forks, N.D.) 1916-1955, 1922-08-02

Washington, D. c., July. 30.-An ar
fist who paints queer interesting pic
lures is Leonard H. Wilder of the
public health service. A water color
painting of grains of dust so highly
magnified that you car see the sharp
edges of some grains and the jagged,
saw-like edges of others is one of his
latest works. A different style of art
is represented by a pen and ink draw
ing on his studio wall, showing a cross
section of a straw tick with myriads
of parasites swimming in its blood.
All about the wallNhang other ex-
amples of the scientific artist skill.
They are not the sort Of pictures that
but they are painted many of. them,
for the benefit of the public.
You may have seen some of this ar
lists work in public health service
publications-maps Of cite; showing
disease areas, pictures of the muscle
groups of the body, a flea highly mag
nified. a shoe that will cramp the
foot diagramed to show how the dis
tortion occur
In it's attemptsto show the people
the dangers of disease and the great
need for preventive measure the pub
lie health service keeps Mr.. Wilder
busy at his easel making several hun
dred illustrations a year. The gov
eminent doctors and scientists have
found that a detailed verbal descrip-
|tion of how a mosquito implants MALI
aria parasites in the body is far les
impressive than a highly magnified
picture of. the parasite entering the
proboscis of the. mosquito. A short
description with the picture may tell
how the malaria germ gets into the
mosquitoes salivaryi ducts and is
transferred to the wound that the
mosquito inflict,. The observer see
ing with his own eyes the enlarged
mosquito in all its dangerous ugliness
goes out determined to Stay the pests
with increased vigor. The picture
does it.
Just now a number of Mr.. Wilder's
newest art works have been sent to
Rio de Janeiro to the centennial ex-
pc ition. Some of them, painted on
glass, represent a new development In
scientific art.
Using q Microscope.
A microscope has always been re-
garded as the most lucid way OF
showing scientific wonders to the pub
! lie. But If you have ave been Of
fered a peep into a high power micro
scope you know that a short glimpse
l III LuC OOJcCL III AK p1oSC -
sati factory. Even a person accus-
tomedito using scientific apparatus
may have difficulty in, focusing the
instrument. Mr.. Wilder says that he
never likes to w. n microscope ex
| cept his own because 1t takes several
days to get used to q strange instru-
ment, leven,if it Is Of the same make
and type as his own. So it ia not
strange that the public, offered a
quick view Of q few interesting germs
at, some exhibition, rarely gets a good
look. Nothing. however. seemed sc
convincing to the layman as a micro
service often packed and sent out Ia
Instruments to health exhibitions.
A few months ago, though. Mr.
Wilder experimented with some wa,
ter color painting; Of parasites on five
inch squares of glass. Each of these
was put in the bottom OF a fairly deer
box and a glass cover vas fitted or
the top. The result was q view that
stood out In relief just as the micro
scopic plate did, and the painting was
larger and did not have to be squint.
ed Mt or brought into focus. The tran
sparencdes went to an exhibition ,ir
Chicago and doctors and other visitors
approved Of them highly.
Among the glass paintings sent t.
Rio de Janeiro are q number of pic,
lures showing the dangers Of dust
Mr.. Wilder went into the street and
got some samples that he though,
typical Of municipal dust. He mag.
nified them highly and painted then
on glass
Seven-eighths Of the grains hat
cutting edges: The grains with sharr
edges like; glass were crystalline prod.
ucts, probably the finest sand. Cinder.
twere IN the dust too. and the micro.
Escope showed that they had saw-lik<
edges, Injurious TO the ears and eyes
It took q micro.cope e~nlarging thu
dust 500 times to show clearly the
character Of ordinary dust. The NOR.
al was 30 obvious that It was scarce.
ly necessary to write on the label q
plea for Cleanliness. The SHARP
grains. tiny - they are, may do dam.
age to the luhss and leave them sus.
ceptible to the attack, Of germs.
For smother picture, Mr.. Wilder
sItook u tiny piece Of cotton from TIN
floor OF cotton mill and a9piecp 8
WOOL. He teased them out 10 the fin.
81 possible condition andEsmasntned
them. The resulting picture showed