Evening star., 1925-04-06

with aircraft a thrust can be pro-
jected into this area which in two or
| three hours will do more than had
been accomplished by weeks and
| months of laborious toll on dog sleds.
Other features of the expedition
vie in Importance and romance with
the exploration of the great northern
unknown area. 1t IS planned 70 visit
| Cape Columbia (Peary's jumping off
place. by air and obtain copies of
the vitality important records which
| Peary left there. The central por-
tions OF Axel Heiburg Land will be ex-
| plored from. the air. The planes will
fly over the Greenland ice cap, OBJ
tanning vauable scientific data and
Photographic records in these two
regions, which no man has ever be-
| fore penetrated.
! VIII Study Temperatures.
| Complete air equipment will be
| carried for scientific observations and
| records. The temperatures of the up
| per air strata Of the Arctic will be
| nation of meteorolo ogical phenomena
| Of the Far North. 1t is altogether
| probable that the planes will find
warmer temperatures at increased
| attitudes because of the "a hours of
| sunlight which characterize the
| RTCtlC Qdy IN summer. IraNel
| through even the known localities of
| this region has hitherto been on the
surface. and 1t is believed that the
lower temperatures encountered are
due to the refrigeration effect of the
hold-over fee from the frozen Win
| ter months.
Complete Photographic equipment
will be included in the expedition
including motion picture cameras.
still picture cameras and mapping
| cameras. The mapping cameras,
| which will be installed in the planes.
will be capable of continuous running
| for two hours. They will make an
accurate map of the territory over
| which they fly, such as would prob
ably never be made in the next cen
| tury by other means. Baff1n Land in
the vicinity of the magnetic North
| Pole will be mapped by this method,
| as will also Ellesmere Land. Those
| regions have been the subject of la
| borious Investigations by Macmillan
| for years, with particular reference
| to magnetic phenomena.
The radio equipment of the expe-
| dition will be of especial interest
| In the words of E. F. Mcdonald OF
| Chicago, who is giving particular
| attention to these details, we will
write radio history in the North this
Summer Mr.. Mcdonald is president
| Of the Radio Broadcasters' League
| and is assembling the finest radio
equipment procurable for the expe-
| dition. Sets for transmitting on 20
| 49, so and $50 meters will be carried.
with the 20-meter set Mr.. Mcdonald
expects to communicate with the out
side world, not only in code, but by
voice. 1t is altogether probable that
| people on the Equator will hear the
| folksongs sung by the Eskimos in the
| Arctic this Summer said Mr. McDon-
aid.
Impenetrable Radio Band.
Between the latitudes of SIS and as
degrees there exists what his hitherto
been an impenetrable band for radio
communication. These latitudes also
| define the auroral band, though it Is
not known whether any significance
may be attached to this fact in con-
nection with radio communication. The
| difficulties Of daylight transmission
| and reception, as compared with night
| broadcasting, are we'll known to the
| radio fan. It may be recalled that
there is no night during the Summer
months in the Arctic, and this fact will
be an additional handicap which will
| serve as a challenge to the expedition
THE radio operator for the expedi-
ton has not as yet been selected, but
a call for volunteers, which will be is
sued in the near future, is expected tc
to turn up a host of radio enthusiasts
as candidates for the post"