Evening star., 1932-12-21
CONVENTION To SEE|
SCIENCE EXHIBITS
Nearly $50 Washingtonians
to Take Part in Meeting
at Atlantic City.

Equal amounts Of pure water, chem
1cally indistinguishable, may vary con-
siderably in weight.
This Is shown in an exhibit being
arranged by the Bureau of Standards
for the annual meeting of the American
Association for the Advancement OF
Science, in which nearly $50 Washing
ton scientists will participate next week
at Atlantic City.
The difference Is due to the fact. as
discovered in recent Bureau of Stand
ards experiments, that there are two
kinds of atoms of hydrogen-one of the
two chemical constituents Of water.
One Is slightly heavier than the other,
having an extra election. The chemist
cannot discern the difference.
The difference in weight shows up
when the new kind Of hydrogen is con-
tanned in water at the rate Of about 180
parts in a million. The bureau exhibit
will show a dish of ordinary water on
one side of an extremely delicate scale,
overbalanced by the specially prepared
water on the other.
mercury Soap Bubbles"
The bureau also will exhibit for the
first time mercury soap bubbles pro-
duced because of some minute impuri-
ties in a preparation of mercury.
The Smithsonian Institution is pre-
pairing an exhibit showing the profound
effects of minute changes in light and
carbon dioxide content of the air on
the phenomenon of photosynthesis in
plants, one of the most fundamental
processes in life.
The Department Of Agriculture is
preparing an exhibit showing the use
Af CIV nafc In, hn m q ~
q wounds and the methods used in
rearing these maggots for the use of
surgeons. The Bureau of Fisheries will
present an exhibit of its work in find
ing vitaminS in various fisheries
products.
Another Washington exhibit will be a
hitherto unknown map of prehistoric
Indian earthworks near the confluence
of the MuSkigim and Ohio rivers in
Ohio, which recently has come into the
custody of Miss Leila G. Forbes, Ii
brarian of the National Museum.
Scientists on Program.
Among the washington scientists who
will present papers at the Atlantic City
meeting are:
Department of Agriculture-R. E.
Snodgrass. William Robinson, F. A.
Bishop, E. N. Corey, Alan Stone, H. L.
Dozier, j. M. Aldrich. S. B. Fracker,
r. A. Sheals, F. c. Meier, Curtis P.
Clausen, N. E. McIndoo, L. P. Ditmar,
Campbell, j. A. Hyslop, S. A. Weigel,
Floyd F. Smith, Henry H. Richardson,
r. H. Carter, E. j. Newcomer. R. C..
Roark, Maurice c. Hall, Mary S. Skin
ker, e. w. Price, B. G: Chitwood,
Everett E. wehr, G. F. White, Allan
Mcintosh, Benjamin Swartz, Joseph E.
Alicata, Paul E. Underwood, Willard H.
Wright, L. H. Flint, Caroline T. Rum
bold. Ruth F. Allen, c. F. Andrews, L.
L. Harter, Angie M. Beckwith, Ken
meth B. Papen, Charles Thorn, j. A.
Charlotte Elliott, A. G. johnson, Elmer
V. Shear. J. S. Cooley, c. o. Brakley,
brand, R. B. wilcox, Ivan G. Jaeger,
Norman Chandler, Alice M. Anderson,
W. T. swingle. K. A. Ryerson, J. H.
stevenson. vera K. Charles, E. B.
Lambert, C. D. Neal, r. E. Webster,
X. c. Gum. Cornelius L. Shear. Carl
Hartley, L. w. r. Jackson, o. N. Lining,
w. J. Zaumeyer, E. S. Schultz, U. P.
Raleigh, Arnold S. Dahne, j. j. Skin
ner. j. H. Weinberger. L. A. Fletcher,
w. w. Aldrich, G. M. Darrow. F. G..
Waldo, William Peacock. R. c. Wright,
B. E. Brown. T. M. Whiteman, F. r.
Reid, c. E. Steinbaur, David Grifhths,
D. v. Lumsden, E. S. Degman, j. r.
Furr, j. R. Magness, Roy McGruder,
v. r. Bosnell. S. L. Jodidi. L. O.
Regeinbal, c. F. Swingle. M. H. Haller.
p. L. Harding. D. H. Rose. j. M. Lutz,
j. S. Caldwell, H. H. Moon, B. c.
Brown, c. F. Clark and F. J. Stevenson.
Bureau of Standards--R- B. Ken
nard, F. L. Mohler: Geological Survey,
c. Wythe Cook; Coast and Geodetic
Survey, H. H. Mariner; National Insti-
tute Of Health, H. w. Chalkley and
George E. Daniels; Weather Bureau,
w. ]. Humphreys, Leroy T. Samuels
and R. H. Weightman; Naval OBJ
servatory, H. R. Morgan, F. B. Littell
and William Browne; Bureau OF Fish
cries, H. F. Prytherch and P A. Galts-
off; University of Maryland, N. w.
Stewart, j. w. Heuberger, J.. B. S.
Norton, Mark w. Woods, F. B. Lincoln,
w. A. Frazier, j. H. Beaumont, R. P.
Thomas and E. D. Mathews; Smith
sonian Institution, F. H. H. Roberts,
F. NJ Settler, w. D. Strong, Ales
Hrdlicka, T. D. Stewart, j. T. Russell,
F. S. Bracket, E. S. johnson, Jason r.
Swallen and Y. L. Kleng; George
Washington University, Robert F.
Griggs, Paul w. Bowman and Earl B.
Mckinley: American University, G. F.
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