The sun., 1919-02-20

fieids of the unexpiored Arctic basin.
On account Of the open weather during
certain seasons of the year II will be
entirely feasible for base for these
airplanes TO be established at some suit
able point on the northernmost land.
1.-THE explorer. flying across the Ice
fields, may observe n continental for
nation OF land, which may be noticed
partly by It's denudetion of snow which
occurs during the summer months and
partly on account Of It's difference Of
altitude frsm the ice foes. Numerous
observations taken at the same points
some weeks apart would clearly tend to
dif1erentiate between permanent land
formations Of ice foes. When the fiier
observes this continental formation no
will change his course 30 as to ny along
the contour Of this land 30 as ultimately
encircie II.
AT regular intervals he win emit q
characteristic signal which will be de-
tected by the direction finders on terra
flrma. In order to form an accurate
check of the system a photograph 10
taken at each interval that the signal
10 sent out from the plano, which, II
may coin O new word Ia comforting
the land. THIS photograph will show
in great detail the exact formation of
| the coast line below.
Thus q series Of photographs will be
taken all SUCCESSFULLY attached to one
another In q final composition showing
progressively the outline Of the coast.
When they are finally assembled by q
| special device which we have developed
each picture will show upon its face the
compass bearing the direction which the
coast line follows with relation to tho
| true north In this way by assembling
photographs at the end of the run and
by attaching them consecutiveiy we will
l have a contour Of the formation Of the
land geographically taken.
| AT the same time we win have the
path OF the flight OF the airplane mapped
by the direction finder system on shore,
and since this path Of flight has been
along the coast line we will therefore
have another map Of the new island or
| continent.
Now by superimposing the photo
graphic map upon the radius direction
finding map we will be able to eliminate
practically all the errors and to all In
all the details OF the characteristics Of
the outline Of the new territory. thus
achieving at the rate of so miles an hour
a method Of surveying whose accuracy
Is such as to prove O valuable factor In
exploration.
Without enduring the physical dam
gers OF mountain climbing the dangers
OF the fever-stricken swamps Of tropi-
cal lands or the treacherous icefields of
polar regions the modern explorer will
be able to cover while flying thousands
Of feet above the surface OF the earth
at great speed vast territories which
he can map with an accuracy which
these inaccessible regions have hereto
Ifore prohibited"
Many Casualties Preventabls,
Brig. Gen. Theodore C. Lyster, head
OF the Medical Air Service. said that 90
per cent. OF the flying casualties amons
the Allies In the nrst three years Of the
war were due TO some fault o,
the pilot. and that half OF such cas-.
ualties are now known to be pre-.
ventable, as shown by our oxper!
ence In France since the enforcement O,
J simple medical preventive msasr es
Applying this lesson TO civilian Tying ir