1941-05-28 — Page 11

HONGKONG DAILY PRESS

PRESIDENT LINER SAILINOS

To SAN FRANCISCO and LOS ANGELES via. SHANGHAI, KOBE & HONOLULU

July 15 S.S. "Pres. Taft" 5.8. "Pres. Cleveland" July 30 S.S. Pres. Coolidge" Aug. 9

S.S. "Pra, Cleveland" S.S. "Pres. Coolidge"

June 5

S.S. "Pres. Pierce"

June 16 Juce 30

To NEW YORK and BOSTON

'via MANILA, SINGAPORE, PENANG." COLOMBO,

SIX MORE TEXAS CAMOUFLAGE AND

OIL FIELDS

NEW YORK.--Bix" entirely

new

COUNTER DEVICES

CHICAGO. What is a nation's best defence asainst an air raid? Today, the answer is the fighter plane. Tomorrow,"science bopes, it will be a coat of paint, according to J. E. Holbrook, an Authority on the art of paint camouflage.

'm a not-too-distant future, he indicated, invading air raiders might find that, from the air all of this nation is a series of cow-pastures, marshes, forests and deserts country apparently

without industries, without fortifications.

oil fields were discovered recently in Texas by a new method which consists in determining the content of hydrocarbon gases in

sinall quantities of soil.

The method, described by Dr. Leo Horvitz of the Subterrec Com- pany of Houston, Texas. before' the annual meeting of the Ameri-" can Institute of Mining and Metal-

If this hope is realised, dr raid- stereoscope, the right eye sees one lurgical Engineers, is so sensitive ars will have to "chance" their print and the left eye the other, that it determines the presence of shots-bomb every square foot of the images being coalesced by the hydrocarbon gases in quantities, as land before they can be sure of a eyes. Because the photographs ap- minute as two parts to a billion. direct hit.

pese three dimensional, all objects that stand out from the earth's surface, bridges and buildings and the Uke, appear raised.

branch of

and CAPETOWN

S.S. "Pres. Monroe'

June 1

S.S. "Pres. Jackson"

July 13

B.S. "Pres. Adams"

July 26

S.S. "Pres. Hayes" 5.S. "Fres. Garfield" 5.S. "Pres. Monroe"

Aug. Aug. 24 Sept. 7

$

It is a

To SINGAPORE via #S.S. "Pres. Madison" *Dorothy Luckenbach *Harry Luckenbach

MANILA

June 19 June 21

June 28

Та MANILA

8.S. "Pres. Cleveland" May 30 5.S. "Pres. Coolidge" June

June 23 8.8. "Pres. Pierce"

To NEW YORK and BOSTON.

via SAN FRANCISCO. LOS ANGELES and PANAMA

S. "Pres Taylor"

June 19

*S,S. "Pres. Madison"

July 19

Dorethy Luckenbach

July 19

* Cargo only.

Harry Luckenbach Andréa Luckenbach S.S. "Pres. Harrison" Omits Boston

July 26 Aug. 11 Aug. 28

AMERICAN PRESIDENT LINES

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NEXT SAILING BEGINNING OF JULY, 1941,

For Freight or Passage apply to:-

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Agents.

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Tel. Nos. 28037T &. 25038.

"1

WEDNESDAY, MAY 28, 1941. -PAGE 11

P. & O.

Passenger & Cargo Services

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development of a new To indicate the possibilities, Hol science known as geo-brook mentioned the chameleon chemistry. Mr. Horvitz explained It conceals itself against a-green, that in the course of thous nds of brown or gray background by ap

Moving objects also are easily years, small amounts of hydrocar-plying limited powers given it by detected because a moving object bon gases, of which petroleums nature

MACKINNON, Yet, Holbrook points out, will appear in different positions. į composed, seep toward the surface science has made available to man-Although the moving objects are of the ground, even penetrating kind an unlimited number of pig-skillfully camouflaged, their lack layers of rock.

ments and colours with which to of correspondence in position gives work.

the secret away.

NEW METHOD

Unfortunately, advances

in

The new method consists in test-

BASED ON NATURE ing soll samples, horizontally and science were not limited to protec- Other camouflages have their vertically. An

Aggressive de-bases established by nature. Man of area

discoveries. several tive

The square miles is tested at the start, vices kept pace. Light filters were caught up the idea. quickly. .for

These example, samples of soil at a depth of twelve originated

savage smudges his face and body feet are taken and analysed by filters will immediately unmask to break up the aspect of familiar microchemical methods, using low the painted object, because the human features. And modern man temperature fractionation and filter will turn the chlorophyll well ahead of his forebears. In combustion methods,

green of vexetation to a reddish the recent Russo-Finnish war, the The next analysis is made of soil tinge, while the green paint will Finn soldiers who costumed them- dug from thirty foot depths, if the continue to appear green, or per-selves In white became semi- first tests are positive. If oll is haps gray, through the device. Invisible against the snow. present there is a notable rise in

DEMANDED NEW SOLUTION Camouflage during World War I the quantity of hydrocarbon Bases

Protective science met the chal-was largely copied from the insect in the soll. Surrounding areas are tested in the same way and the of lenge of agressive science with and animal world. Camoufleurs deposit has been found to lie di the spectrophotometer. This in- studied to break up outlines" by of paint rectly below areas of low concen- strument broke up colours into smearing Irregular areas

their component parts. These on guns, trucks, ships and build- tration of hydrocarbon guses im

served to make the the surface soil, located between colour values, recorded on photo-ings. This two areas showing high concen- graphic film, made possible the jobject inconspicuous, when viewed tration of the gas in the surface checking analysis of the light re from afar. Also it was difficult to flected from vegetable, substance, measure the distance to such an soll.

No explanation has so far been from paint coatings, from earth object through use of "a

range-finder, which must be ad- found for this phenomenon, but surfaces and from bodies of water.

Consequently a building that was

modern

MACKENZIE & CO. Phone 27721.

BARBER-WILHELMSEN

SERVICE TO

BOSTON AND NEW YORK

LINE

Vu LOS ANGELES & PANAMA CANAL PORTS.

by NEW FAST VESSELS

NEXT SAILING FIRST WEEK JUNE Following sailing Fourth week June

"

Taking cargo on Through Bills of Lading for West Indies, South American ports and West Africa.

DODWELL & CO., LTD.

Agents.

Bong Kong, Bank Building,

to

Mr. Horvits pointed out that the Use of the spectrophotometer Justed until side-by-side images method had been used successfully posed a new problera and demand-match.

War conditions contributed on several occasions when digging ed a new problem and demanded Jor an oil deposit was about to be new solution. Holbrook explain-the effectiveness of this type of Holbrook explained. abandoned.

ed that vegetation changes season- Camouflage,

An Image confused by broken ines ally.

and Indefinite colourations is nearly

"match" Impossible to perfectly camouflaged against last through the sights of a range spring vegetation stood out like finder that is set on an unsteady fly in the soup when summer came.ship's deck or wheeling around in Variations also occur daily from

the air aboard a warplane. Indian braves" and their squaws changes of light at mornme, noor whose ancestors scalped their ene- and evening, mies with tomahawks are learning The general solution has been to a new type of warfare in Canada-include or provide leeway for these poison gas,

factors by adding to camouflage

RED INDIANS LEARN TO FIGHT POISON GAS

ORIGINS

Financier, A

financier,

before

Indian men and women of the paints the coatings of the elements Alberni Reservation in British needed to match the light coming the French Revolution, was a gen- Columbia have been enrolled for from surrounding areas and obtleman employed by the Govern- ARP. work to take courses in first Jects. Always the matching of the ment to collect fines or taxes. The aid, anti-gas and home-nurains so colour and of the intensity of the word are comes from the Latin that they can help their fellow reflected light must be near per-anis, end, meant a final settlement tribesmen

The collectors of If the air-war ever fect.

ör payment.

the What complicates an arready fines eventually became Canada's Pacific coast comes to Drovince.

complicated set-up. Holbrook point-managers of the monetary system Precautionary training for the ed out, is the fact that no one has and controlled the finances of Indians is part of a systematic air matched the light, quality for France.

for defence programme covering Bri-quality, wave length tish Columbia's key cities and its length that comes from

Rubber. Rubber owes its name and affects all camouflaged ob-to the fact that it was first used, remoter settlements

Official warnings that Canada's | Jects during daylight hours.

-at 7s. 6d. an inch cube-to rub Pacific seaports were vulnerable to The ace played by protective out pencil marks. It was Joseph air attack have led to quick emer-sclance in matching colours was Priestley, the Yorkshire physicist gency defence preparations. More trumped by the application to (1733-1304); who first pointed out"; than 5,000 civilians have been or-aggressive purposes of a familiarits use for this purpose. Thus be- ganised into a formidable A.R.P. 'device-stereoscopic photography." gan the vast export trade now en- unit for Vancouver alone. Trained This makes plainly visible objects joyed by Malaya, Ceylon and other in medical aid, anti-gas measures, not noticeable to the eye, even parts of the British Empire, and fire-fighting they are ready through use of light filters.

wave . the sun

for action the moment a hostle Holbrook cited the following ex- First Treaty. The first known plane menaces Canada's Pacific ample of how this aggressive device treaty in world history was con- cluded in 1300 B.C. between gateway.

Chungking Strafed

works.

An enemy reconnaissance Plane Rameses IL, of Egypt, and Kethar- files over a defended region. Two Sar, on the Hittites... photographs are taken of each Engraved upon a silver tablet, it CHUNGKING, May 27 (Central) suspected area. Naturally, they rings remarkable. modern today. two great Powers made a Japanese planes flew toare sandwiched with a time inter The the neighbourhood of Chungking val, depending on the height of the non-aggression pact and a defen- sive alliance, Provision was made and opened machine-gun fire yes-plane and its speed. terday morning. They later flew When the photographs are deve-for national minorities, and eter- eastward,

loped and examined through

-Four

snal peace and friendship sworn,

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