Evening star., 1931-11-22


The Aeronautical Chamber Of Com.
merce has received reports from SO all
transport lines. which show that dur
Ing trre E.-Sst nine months Of 1881 there
were 348, ,5O7 persons flown in scheduled
transport service, as compared with
327,2l1 passengers in the same period
last year.
During the same time transatlantic
steamships operating from American
ports carried 175,994 passengers west
bound and 288,316 eaStbound, as against
3I4,O34 westbound and 354,405 east
hound during the same period a year
ago The decrease is 1926 per cent in
westbound traffic and 1873 per cent in
eastbound traffic.
Glass railroads in the United States
carried 128, ,464 900 intercity passengers
during the first seven months Of this
year. 161 595, 900 during the 1lrst seven
months last year. The decrease was
EOS per cent. Commuter traff1c was re-
ported to be down 11.3 per cent during
the seven-month period.
While air passenger trafflc was in
creasing 6.5 per cent, the mileage flown
by American air transport lines during
the first nine months of this year
showed an increase Of All per cent.
Air express shipments jumped 212 per
cent and airmail 1872 per cent.
Air passenger traffic In September
reached a new high record, when g.
4l9 persons rode the Nations airlines.
This is nearly 10000 more than were
flown In September, 1880. and is S,256
more than the total for last August.
Beyond Range Of Sight.
Army Air Corps Photographic map
ping projects now are carried on beyond
the range of human sight and during
sunrise and sunset hours, when ordi-
nary photographers fail because Of ex-
cessive red in the light.
The results of the long photo
graphic work Of Capt. Albert w. Stev-
ems, world famous Army Air Corps pho
tographic expert, have been applied to
routine mapping projects. Multiple
) lens cameras, taking five exposures
simultaneously, are used. During the
course Of recent mapping exedition
undertaken by Capt. Stevens In West
ern Maine for the United States Geo.
logical Survey and the State of Maine,
mapping photographs were made with
this camera at the rate of 200 square
miles every half hour. Three hours of
actual photography accomplished what
would have required six months work
with ordinary equipment.
Capt. Stevens carried on the work
new type Of finn especially sensitive
to red and green, permitting exposures
through the heaviest filters. The filters
used, so heavy They look black, cut of
light that is visible to the eye. but still
permit the longer wave lengths to pass
through the lens to the supersensitive
film. Since the long waves pass through
mist and haze more readily than the
short waves, the result is pictures re.
Vna1inQ objects nnnnn1ofalu nnx,nnaYaS
from the eye by mist and haze.
The five-lens camera is Of interest
because Of the Tremendous area It can
cover. Though four of the five lenses
are pointed out at angles and the re-
sulting photographs are not the true
verticalS required for mapping accu-
racy, they are used in connection with
a laboratory instrument which rectines
the wing pictures, enlarging them and
projecting them to the horizontal plane
at the same time.
Experiments are being made by Can't.
Stevens at the Materiel Division, Wright
Field, Dayton, Ohio, with a view to
combining the desirable features of two
types OF film tlsed on the Maine ex-
pedttton. The work will call for the
fullest cooperation of commercial re-
search laboratories, and If successful
wlll result in important progress in the
science of air mapping
Trophy to Reserves.
The schiff Memorial .rronhv. nre.
mier naval award for safe living will
be presented by President Hoover at
1880 pm. December 10 to Lieut.. Rich
ard T. Whitehead, U. 8. N, commander
OF the Naval Reserve aviation base.
Floyd Bennett Field New York. in rec.
ognition Of the splendid record made