Evening star. [volume] (Washington, D.C.) 1854-1972, 1924-11-27
NAVY OCEAN STUDY
|A|DED BY SCIENCE
Various Forms of Apparatus
provided for Research to
X Learn Depth Secrets.

Various forms OF scientific appa-
Sa4uS are expected to be brought into
play in the Nays proposed cxpedi-
ton to learn more about oceans.
their chemistry, resources and bot
toms
The u. 5. S. Rainbow, which has
been suggested as the craft to mi
tate the sea-exploration program in
the Gulf of MeNico-Caribbean region.
IS. $50 feet long. has a draft of II
feet and displaces 1850 tons, and Is
amply provided with comfortable
quarters and cabins to take care of
extra personnel for scientific work,
exists aboard for laboratories and
tanks for collecting living speci-
mems.
Sonic Depth Finders.
The latest type of sonic depth find
ers and radio would be installed on
the Rainbow, under plans mapped
out by a special conference on ocean
ography, which has just made it's
final report to the Secretary, OF the
Navy. With her officers and crew
gathered from the naval establish
ment, the Rainbow would carry Il
specially selected scientific personnel.
consisting of one oceanographer, one
biologist, one geoloGist and six or
ference suggested that the first three
should be outstanding in their Spe-
cial fields and the younger scientists
might be drawn from universities
colleges and other institutions. While
subsistence and travel expenses 10
and from their homes for the Sclen-
lists were included in an estimated
Cost of the expedition, the confer
ence expected that sources outside
the Government would defray their
salaries.
Held as Important Aid.
The sonic depth finder, developed
by naval men after its invention by
DR.. Harvey c. Hayes, rapidly deter
mines ocean depths, and is expected TO
play a major part in the expedition.
An apparatus for determining the Sa-
1inity of sea water from measure
nents of its electrical conducttvitE
was advocated for use, in discussions
insthe conference. \ proposed design
of. automatic recording thermometer
to- supply time temperature record
or a chart accompanied by stimuli
taneous time depth record. to be reg
istered aboard ship as the thermome-
Ter is lowered, was mentioned By DR..
L. J. Briggs, chief of the division OF
mechanics and sound. Bureau of
Standards, in offering the aid of the
EardinE design of apparatus for tenn
perature measurements.
Other Data Sought.
Data concerning interference in re-
mote portions of the globe between
high powered stations are TO be sought
during the expedition. and the install
Jation of equipment for measuring in
yansites of radio signals from differ
ent stations has been urged. An in
strument from which the number of
dust particles in the atmosphere may
He. counted has been devised by the
Weather Bureau and was suggested
for use on the expedition In the study
Of Visibility.
The expedition. it was pointed out
affords exceptional opportunity for
testing various devices and methods
developed aids to navigation. In
this connection it was suggested that
n comparative study be made of taft
rail logs and of Pilot tube speed in
dieators. An artificial horizon. gyro-
statically stabilized, might also be
tested in making scxtant observa-
tons when the sea horizon is OBJ
secured.