Evening star., 1931-04-26
WORLD SCIENCE
CENTERS INTEREST
IN D. c. THIS WEEK
National Academy and Ameri-
can Physical Society Among
Meeting Bodies.
GRANDSON OF DARWIN
WILL PRESENT PAPER
Programs Under Health Service
Auspices of Wide Range and
Importance.

Washington will be the center of the
world of science this week, with the
annual Spring meetings of the National
Academy Of Sciences, the American
Physical Society, the Geophysical
Union, the American Meteorological
Society and the joint meeting Of Amer
lean and Canadian health, officers
under auspices of the Public Health
Service.
Among those who will take part In
the program of the National Academy
whose meetings start today, is c. G.
Darwin, grandson of Charles Darwin,
who will present paper on Examples
OF. the Principle Of Uncertainty"
The sessions tomorrow will be devoted
to physical, chemical and astronomical
papers. Prof. Henry Norris Russell of
Princeton University will speak on
molecules in the atmosphere of the sun
and Morris K. Jessup of the University
of Michigan will tell Of the discovery
of 5000 hitherto unknown double stars
In the Southern hemisphere. Gen.
George o. Squire, former chief Of the
Signal Corps, will present suggestions
for the further development OF the
telephone system of the United States.
Paper on Atmosphere.
Among the outstanding papers on
tcmorrows program are those on The
Temperature of the Earth's Atmos-
phere," by E. O. Hulburt Of the Naval
Laboratory, and The Reaction of the
Human Skin to ultraviolet Radiation. -
b. DR.. w. w. Coblentz of the Burean
of Standards. Tomorrow night there
will be a lecture by Prof. James H.
Breasted of the University OF Chicago
on The Rise of Man and Modern Re-
search"
Outstanding on the National Academy
program for Tuesday is the paper by
Wilder D. Bancroft and G.. Holmes
Richter of Cornell University on THE
Collcid Chemistry of Insanity" pre-
senting a new view on the bio-chemical
basis for various sorts OF mental alb
normalities The experimental work
was a National Academy project.
Other speakers on Tuesdays pro-
gram are DR.. John c. Merriam. presi-
dent of the Carnegie Institution OF
Washington: DR.. Henry Fairchild Os-
born of the Museum of Natural History
New York: Mai William Bowie of the
Coast and Geodetic Survey; DR.. w. T
Swingle of the Agriculture Department
and Drs. Albert F. Blakeslee and Fran
els G. Benedict of the Carnegie Insti-
tuition. Among the more notable
papers will be that Of DR.. e. v. Nc
who will make a public announcement
before a scientific body for the first
time of the apparent extinction OF
mother love by a deprivation Of the
clement manganese in the diet Of rats.
Geophysical Union Meeting.
The meetings of the Geophysical
Union will start Thursday with the
chief interest focused in plans for the
international polar year in 1882 when
practically all the principal nations OF
the world will cooperate in an inten-
sive program of polar research. The
meetings will be held in seven sections
-geodesy, meteorology, volcanology,
oceanography, seismology, NEUROLOGY
and terrestial magnetism.
Among the more important an
louncements to be made are that Of
DR.. Paul r. Heyl of the Bureau of
Standards on the determination OF the
constant of gravity at Washington.
At the same time, the American
Physical Society will open three.day
meeting at the Bureau OF Standards
with numerous papers on the structure
of matter. the nature Of cosmic and
other radiation. and conditions in the
upper atmosphere.
Among the noteworthy topics to
come before the health officers are the
effects on health of the food depriva-
tion and unsanitary conditions caused
through a large section Of the country
by the 1880 drought.