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lapping wing principle, and the
roplane. Major Moore shows
apping wing variety. The larg
that of A. V. Roe, who recent
r to Colorado to make experi
Roe has five models on view,
m aeroplanes, which he says
emselves more than one hun
ty feet. Mr. Roe told me he
finished a real flying machine.
six feet long and weighs with
400 pounds. With an eight
Jap engine he expects to attain
miles an hour.
an Conquering the Air
en-Powell Says Flying Ma-
s have Come to Stay
F. S. Baden-Powell delivered
ast week to the members of the
rological Society on "The Ex-
the Air," Three means were
service of many by which he
the mysteries of skies-
es and flying machines. As to
it was now realized that this
d delicate apparatus as not
much practical application.
at strides had been made in
ment of the balloon, so that it
ven to any predetermined goal.
years ago the French Govern-
the first dirigible airship, and
ssessed one, if not more, that
really practical air vessels of
rological kites had also been
ed in recent years, and instru-
oy kites retained by steel wires
ascended to a height of four
at Aldershot kites had been
roduced into the military ser-
were first lifted by this means
hich year the lecturer himself
er of ascents up to one hun-
gh, but improvements have
llowed, until now men have
up to a height of three thou-
elevation practically beyond
rifle  bullets, and so high as to
eronaut almost invisible. The
e, said the lecturer, has come
ge machines were constructed
ght engines, and during the
three years not only had men
fully raised off he ground,
been able to sustain them-
air for half an hour at a time.
emained to be done before it
that man had veritably con-
r.

Wood's Helicopter Airship
ed by Horizontally Placed Propellers
ratory experiments for the
e that is being built by Pro-
t W. Wood, professor of ex-
hysics in the Johns Hopkins
ith Otto Luyties, a Baltimore
e practically completed and
construction will begin soon.
ood has been carrying on
ments in the Hopkins labora-
ral months. The purpose of
nts has been to test the lift-
d the steadiness of action of
lers as the means of ascen-
pulsion. On the basis of the 
ned by Professor Wood a
machine will be constructed
Point under the direction of 
ntors. The type of machine
Professor Wood and Mr.