The daily star-mirror. (Moscow, Idaho) 1911-1939, 1921-12-07
SURVEY VOYAGE
COMES TO END
Yacht Carnegie Covers 1000
Miles in Research Work.
LEFT WASHINGTON IN 1919

Makes Magnetic Survey of the Earth
for Carnegie Institution of Wash
ington-FilIs in Observations on
Areas That Had Not Been Sufficient
Iy Covered Before and Determines
Changes in Magnetic Conditions
-Encircles Globe.
The yacht Carnegie, making mag
netic survey of the earth for the Carne-
gle Institution of Washington, arrived
completing a 65,0O0-mile voyage in
! which it filled in observations on areas
that had not been sufficiently covered
before and determining changes in
magnetic conditions. The yacht is in
| command of Captain J. p. Ault, mas
! ter Of the vessel and director of the
scientific work.
| Homeward bound the Carnegie made
it's third passage Of the Panama
| Canal. She first made the trip in
April, 1915, and, again, in May, 1918
The magnetic survey on which she Is
engaged was begun in 1904 by the
Galilee; the Carnegie went into SER
vice in 1909 The present voyage Of
the Carnegie began in October, 1919,
in Washington Taking observations
at intervals the vessel proceeded
across the Atlantic to Dakar, thence
to Buenos Aires, st. Helena, Cape
Town, across the Indian ocean to
Colombo, thence to Fremantle and Lyt-
Teton, and the Society Islands, San
Francisco, Honolulu, Samoa, Raro-
tonga and Balboa.
Made Valuable Observations.
In addition to the magnetic survey |
for practical purposes the staff Of the
Carnegie makes observations which are
of abstract value. One is the measure
ment of the amount of electricity In |
the air, another the amount Of radiuln
In the air and in the sea water. The
whole study, however, Is in the field
OF terrestrial magnetism and the chief
object Of the surveys is to determine
as closely as possible the nature OF
magnetism and how its effects and
changes can be measured and pre-
dicted in other Words to obtain a
measure Of exactness in terrestrial
magnetism which might be comparable
with knowledge of industrial electrici-
ty or branches Of chemistry
s'During this latest voyage" says a
bulletin of the Panama Canal telling
of the visit Of the non-magnetic yacht,
''the observers on the Carnegie en-
countered an interesting demonstra-
ton of the practical value of deter
mining the magnetic declination In
Colombo they were called upon to
testify in land suit which hinged
on the determination of a line run ,
by the compass The line was surveyed
some years ago, and recently the
owner of one of the tracts divided by
the line had it resurveyed, as re-
suit Of which it appeared that the line
should have run considerably to one
side Of the accepted boundary. The
man who had caused the new survey
claimed additional territory.
'"The owner contested that what had
happened was that the declination Of
the compass had changed since the
original line was run; that the old line a
was correct at the time it was made d
md had been acceptable to both par Il
les to the contract, and accordingly Ii
should stand Their observations r
showed that it had, and the court Ii
lecided that the original line should e.
tand.
"In navigating the seas, If the d
course is determined by compass and a
he declination appearing on the chart "
hould be as much as three degrees o.
If, which 1t frequently is, this could CO
make difference of about 80 miles o.
day, and in three or four days a II
essel might steer 80 or 100 miles of Z
he course 1t is said that If a vessel W
yere to steer from the north Atlantic az
or Falmouth by the charts Of cen pl
lry ago her course would bring her, III
vithout the Intervention Of any other :
leans of determining the situation, IL
} the Orkney islands in north Scot II
md" ia
Dr. Louis A. Bauer, director Of the ~
apartment Of terrestrial magnetism al !.
the Carnegie institution, Joined the =,
arnegie on the Isthmus and will fin LIN
h the voyage to Washington. The ~
arnegie Is a non-magnetic vessel,
instructed and equipped with vir- -.
tally no iron, or steel or other mag
tic substance aboard her. She Is
sailing vessel, having a small aux -.
airy engine, capable Of making four ~
lots. The engine and the stove in 80
e galley are Of brass, the anchors ~
Q bronze. In the building Of the ~
Ill locust spikes were used. There ,
: 80 - '1e -ne % ' pic
10 Inc
--.- Ed