I.AMON.BONNINGTON

Srroighr or tired Cors

PlllErFlRrPIYWOOD

Plywood in lsrael

(Continued from page 46)

All this is being done by what is called Al\{pAl--American Palestine lrading Corporation-of Nelv york. This corporation, which has hitherto functioned mainly as a service organization in the fields of financing purchases, shipping and promoting housing activities, is now switching to the promotion of direct capital participation in Israel projects. Right now it. is doubling the size of the Kelet Plyrvood Plant, building the wallboarcl and insulation board plant, and also building a large and modern hotel in the district, at Tel Aviv.

With the Plywood and board plants completed and in. production, they plan to produce 55,000,000 square feet of all their building boards annually, and to export about sixty per cent of this total. It is reported that a prominent American wallboard concern has offered to buy their entire export allotment for years to come.

"Economic Horizons," a small magazine published monthll'by the economic department of the Jewish Agency for Palestilte, sums up the financial aspect of this industry in this '$.ay: "The Kelet Plywood Factory, which is already exporting its products to the U.S. and is thus assured of its foreign exchange requirements for the import of lumber, will make the sawdust and waste accruing from the ply_ wood manufacture available to the new wallboarcl plant, which l,ill thus not depend on foreign currency allocations for its production, and will through its exports, bring sub_ stantial {oreign currency earnings to the fsrael treasury."

Plywood Inc. Expands

Plywood Inc. of Detroit has extended its facilities to the Rocky Mountain Empire with the opening of a Denver branch office and warehouse at 5101 Colorado Blvcl., C.A. Zimmer, president, announced last week. The new branch, known as Plywood Denver fnc., started business on Jnne ,15, r,vith a full line of hardwood and softwood plvwood and kindred products.

In charge of the new Denver warehouse is Donald NIac Alonan, who for the past three y'ears was a member of the Plywood Detroit sales stafi.

The warehouse is designed to accommodate a large inventory ancl to provide for fast and efficient movement of stock. Its 12,000 square feet of space are all on one floor.

The addition of Plywood Denver Inc. increases to 14 the number of Plywood fnc. warehouse branches maintained in this country. The others are in Chicago, Cleveland, Detroit, Grand Rapids, Houston, Los Angeles, Oklahoma City, San Antonio, San Francisco, Tacoma, Tulsa, Vancouver, and Davton,

Wayne Rawlings, manager of Harbor- plyrvood Corp. of California, San Francisco, left Jurle 1 on a trip to the Atlantic Coast on business. His trip included visits to The Celotex Corporation, Chicago; the Formica Company at Cincinnati, and F. C. Russell Windorv Co. at Cleveland. The trip was made by air all the way.

A chance talk between an agricultural engineer and a football ,coach has resulted in the solution to a problem which has long plagued dairy man in all parts of the country. The problem was that of keeping calves and heifers healthy and putting on rveight in cold or rainy weather. Heated barns had been tried. So had elaborate rvarming systems. But every attempt met tvith the same result : the calves did not thrive; many took sick; some died.

Professor J. Roberts, head of the Agricultural Engineering Department, Washington State College, pondered this problem as he watched the Cougar grid squad engage in a rough scrimmage in near fteezing rveather. The perspiring players, he noticed, seemed virtually immune to the icy blasts.

Roberts spoke to the coach. "It's surprising horv r,r'ell the players can take such weather. They must be in good

"It's not hard if you're tough," replied tl.re coach. "And football players are no hot-house lities. They've been conditioned to take all kinds of weather."

No hot house lilies . conditioned to all kinds of weather, mused Roberts. Why wouldn't the same conditioning plinciple work in calf housing? He recalled that dairy herds in Montana had been left largely out in the open during the u'inter-and unlike calves in other parts of the country, the, Montana herds had thrived and stayed runusually healthy.

And thereby hangs the tale.

Roberts, assisted by R. O. Gilden, state college junior agricultural engineer, and interested personnel of the agricultural school, launched a project to determine the feasibility of open shed housing for dairy calves.

The project was carried on for three lvinters, and last year a 4U x 16' Exterior plyrvood calf shelter was built at the Agricultural Experiment Station at Puyallup, Wash.. to study the condition of calves under \Arestern Washington weather where high humidity and rainfall coupled with low temperature prevail during winter months.

Air Conditioned Shelter. Plywood call shelter shown here puls wecther conditioningr lo work on yourlg cqlves. Structure shelters cnimals lrom gevere winter blastg, reduces lempercture diflerence inside cnd outgide to c minimum, preventing colds cnd fctcl sickness, Shelter demonstrcteg mcrkets lor Exterior fir plywood with wcterprool bond in Icrm gtructureg.

Calf Shelter

The shed at the experiment station is completely enclosed with a single thickness wall of Exterior type Douglas fir plywood on three sides. The fourth side is completely open and permits the calves to either wander in individual corrals or lounge under cover, protected from the lvind. The open side of the shed faces East so that the calves are protected from the prevailing westerly winds.

Individual pens, separated by woven wire to provide adequate ventilation, are four feet wide and 36 feet long. About one third of the length of the pens is under cover of the plywood-roofed shed. The remainder is unprotected. Other than protection from the wind, the plywood structure is completely open to the weather with no attempt made to provide heat.

'At the start of last winter a herd of eight, two and threetlay old Jersey and Guernsey calves were placed in the shelter. Other than the fact that they were exposed to natural temperature and moisture changes, the calves rvere fed and cared for in the usual way.

It was a record winter. For weeks the temperature lrovered near zero. Snowfall was considerably above the average Western Washington winter, and to make the test even more convincing, Mother Nature threw in a horvling January l>lizzard.

The calves, which had become acclimated to all kinds of weather, came through with flying colors. No colds, pneumonia or infective scours. The only ailment recorded was the case of a single frostbitten nose. At the same time, other calves in the same general area-protected in hot, humid f21n5-nef only gained less weight, but many took sick and died.

The key to the structure, according to Roberts, is the tightness and draftproofness of the three walls and the roof. If drafts were permitted, many calves would undoubtedly catch cold. This need for completely airtight walls and roof is the main reason I)ouglas fir plywood was specified in the calf shed. Large ( x8' panels of Exterior plywood automatically make for tight, draft-free construction, when panel joints are butted over framing members.

The fact that the panels "simplify and speed construction and build a nicer looking structure," were also important reasons for the choice of the panel material, explains Roberts.

The sheathing grade (C-C) of Exterior type Douglas fir plywood, covered with a built-up roofing, was used for the roof. For the walls, the Utility grade (B-C) was used. The panels were used in full 4 x 8 size, wherever possible, and were nailed directly to studding or rafters.

Further data on the calf shelter and other information are contained in Extension Bulletin No. 269 (Revised) "Raising Dairy Calves." Copies are available from the Extension Service, The State College of Washington, Pullman, Wash

Astoricr Plyvrood Corp.

To Stcrt in IulV

The new plant of Astoria Plywood Corp., Astbria, Oregon, is scheduled to start production early this month, according to a statement by Norman Jacobson, president of this company.

Bob Yerkes San Francisco. branch, where of the sales staff of U.S. has been transferred to he will handle door sales. tholesrle to lumber hrds 0nly

Windows, Doorg, Plywood, floulding

We havc

TTIE COMPI.EIE WIIIDOW I'NIT Built Up With Screen crad Bclcoce In StoclWestela Sizes ilfHI BIOS. - SAffif

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Phmes: Inr l{ln:". E!(brook {-320e fiamsruton & frreen Lumher Co.

Lumber - lcrh - Plywood - Sheetrock Quick Shipments from Stock

I'lywood Corp., the Los Angeles