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Second Edition "Hordwood Plywood

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Published

A second edition of the "Hardwood Plywood Manual," a 50-page, 15,000 word technical work on hardwood p,lywood, has been published by the Hardwood Plywood Institurte.

Chapters cover Principles of plywood constructio'n, Manufacture, Kinds, Properties, Applic'a,tions, and Finish,ing of har,dwood plywood.

Tables cover Dimensional changes calcula,ted f,or ,a ch.ange in mois,ture content, Average strength and related properties, Recommended design s'tresses for typical conslt,ructions, Recommended loads for nails and screws in dry hardwood plywoo'd, Major uses, Physica,l propertie.s of woods used in hardwood plywo,od, Basic stresses for ,hardwood veneers, Design method and allowable stresses for calculating the streng,th and stiffness of plywood.

Figures include: Typ'ical har.dwood plywood constructionrs, Rotary and Sliced Face Veneer Effects, Methods of Matching Veneers, H.ardness test aprparatus, Hardwood Plywood breaking radius-thickness curves.

Dr. T. R. Traux. of the Fores,t Products

Laboratory, planned, assernbled, and developed the basic and teohnical data of the publication, and w,rote a large pant of the origi,nal text. Dr. Traux acknowled,ges assistan,ce ,of various Forest Products Laboratory staff mern'be'rs.

The Hardwood Plywood Institute feels that ,the Manual ,s,h'ould be of ,cons,iderable help to rthe producers and consumers of hardwood plywood. Complime'ntary copies ,of the Manual have been furnished every ar'chitectuml and engineering school in the United States and Canada, as well as to every college or university w,ith a course in. light cons,truction. Complimenttary copies have also been furnished every U. S. and Canadian fores'try school.

Copies may be pu,r,chased for $2.50, postt paid, from the Hardwood Plywood Institute, P. 'O. Box 6246, Arlington 6, Virginia.

UC Sroff Addition

Dr. Helmuth Resch, born in Vienna and large y educ,ated rthere as a wood scientist, has joined the st,aff of the Univers,ity of Californ,ia Forest Products Laboratory at Richmond.

As assistant wood technologist, Resch will be project leeder in the broad area of woodmois,ture rela,tions. said Dr. Arthur B. Anderson, acltring director o,f the laboratory. Drying problems ass,ociated with California wood species will be one of the concerns of h.is project.

D,uring the fall semester, Dr. Resch will also teach a course in lumber rnanufacrturing in the U.C. School of Forestry at B,erkeley, said Ac'ting Dean John A. Zivnu,ska.

D'r. Resch received his b,achelor's degree in forestry in Vienna in 1956 and rthen came to the United St,ates to talce his mas'ter of science degree in forestry at Utah Stiate University, Logan, in 1958. He ob,tained experience in the field during the same period, working as a research aid at the Intermountain Forest ,and Range Experiment Station, at O,gden, U,tah, an.d with the J. Nellis Lumber Company at Libby, Montana.

He returned to Vienna in 1958. After receiving his docto,rate in agriculture from the Hochs'chule fur Bodenkultur in 1960, Resch returned to Utah .State University and has been on its s,taff as assistant profes,so,r. He spent the summer of 1951 at t'he Forest Products Laboratory here as an ass,istant speci'alist.

New Stotisticql Series on Soles ofOne-Fomily Homes

The Bureau of the Censtls, U. S. Department of Commerce and the Housing and Home Fin,ance Age,ncy mad'e ar"ailable for the first tirne pre'liminary stati.st.i,as on sales of new, private, nonfarm, onefarrnily ,h,omes during t,he first four months of 1962. Srtatistics were al'so released on the number of hom,es under con,structiorn or recently completed and still on the market. The s'tartis'tics are inc uded in the fir'st of a series of reporrts on th,is .subject to be released jointly by the Bureau of the Census ,and the Hous,ing and Home Finance Agency.

The new series resulrts from a su.ryey conducted by the Bureau of the Cen'sus since the beginning ,of the year undor a contract with the Housing an'd Home Finan'oe Agerlcy. The darta are based on a probabili,ty sample of one-farnily homes built in the Un,it,ed States. The info,rmation is o,btained rthrough rnonthly interviews of the builders or owners of the homes falling in the sample.

Preliminary tabulatirons of ,the first fou,r months' result,s rerreal the follow,ing, as so(ne of the principal findings:

During the first quarter oI 1962, a tortal of 185'000 private nonfarm single-farnily dwellings were started. Of these, 118,000-or 64 per'cent of the total-were inrtend'ed for sale. Hornes built by a single general contractor for the exclusive use of ,the owner accounted f,or 3Q000 units, ,611 16 percen't of the total. The remaining 37,000 un,its, or 20 percent of t'h'e total of p,rivt1" non-farm singlef,arnily dwellings, comp'rise shell horrnes, rental homes, and tl'rose for whic,h the owner acted as his own general contractor or perfo,rmed some or all of the wro'rk.

Sales of one-family hom,es intended for sale may take place before, at the sarne time as, or after eithelthe issuance of the corresponding building perrnits or,the ,start of const'ructio,n. Thus, the hormes ,sold in the fir,st quarter are not necessarily the same homes ,starte,d in the first quarter. Fu,r,therrmore, not all of the sales t'hat ac,trually occurred in ,the first quar,ter have yet been ,re,port'ed. In the survey procedure used, homes are brought ,into the reporting sarrnple when, in a building permit-issuing place, a