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T.l l1very Mengel Flush Door-Hollow-Core or SolidCote-has dove-tail wedged-locked joints at all four corners ! This fne, exclusive, cabinet-maker's construcdon is found only in Mengel Flush Doorsrequfues more lumber, extra machining and labor, but you get sfionger and more stable d.oors.

Mengel Flush Doors also provide many other ad' vantages. They are designed and built to the highest standards of quality for extra dvtability, extra eye-appeal. Get all the facts. Write today for our new full-color descriptive A.I.A. c talog,including specifications.

Principler of Silviculturc

The.Principles of Silviculture is a new book by !'rederick S, Ilaker, I'rofessor of Forestry at the Universiity of California. It is a straightforward exposition of the fundamental biological facts and principles that underlie the management of forests.

The first five chapter3 outline the various forms and types of forests and the trees of which they are composed' Chapters VI to IX discuss the basic physiological reactions of trees to water, light, nutrients, etc. The remainder of the book outlines the growth and development of the forest from seed to maturity. It is well illustrated and contains a number of graphs, tables and other numerical data.

The book is published by the McGraw-Hill Book Company, Inc., 330 West 42nd Street, New York 18, N. Y. The price is $5.00. t)

Annusl Meetiqg Cclilornia Lumbermen's Accident Fcvention Asgoc'n" Feb. 27-28

The annual meeting of the California [,umbermen's Accident Prevention Association will be held in San Francisco, F'ebruary 27 and 28. The two day meeting will be devoted to the transaction of the annual business, and a review of the Safety Or<ters, preparatory to appearance at the public hearing.

The Division of Industrial Safety has mailed copies of the Proposed Logging and Sawmill Safety Orders together with a notice calling for a public hearing in San Francisco, Marclr I and,2, to all segments of the lumber industry.

Additional copies of the Proposed Orders nray be obtained on request from the office of the Association, 1610 Harrison Street, Oakland 12, Calif. The telephone number is FIIgatc 1-(fi76.

Enclose Appliccrtion Instruction Sheets

Masonite Corporation recently began the practice of including application instruction sheets in wrapped bundles of Masonite brand hardboards as a lneans of familiarizing craftsmen rvith the correct installation methods. Individual folders are shipped with each bundle of Standard Presdrvood, Tempered Presdwood, Panelwood, Temprtile and Leatherwood.

Two application instruction sheets are in,cluded in each wrapped bundle-one on the top and the other on the bottom, so that one will be instantly available no matter from which side the rvrapping is removed.

Each leaflet details the uses, ctttting and working, conditioning, bending, fastening, joint treatment and finishing of a specific product. Additional points are covered rvhere required. One page is devoted to information about the other Masonite brand products.

West Coast Lumbermen's Associction Tells Fcrcts oI Ample Lumber Supply

Fl "PLASTER VoRKABILITY" is as important in the I manufacturinc of plaster lath as in BLUE DIAMOND XAIEruS i nfesffn'. T-his iivaluable characteristic_is a.gift of Nature.

[,r Our Slpsun deposia at Blue Diamond, Nevada, possess l. "praSTrR VORKABILITY" to a hish degree. i' gg;.+1.;fl.;-l;'lil, jiil

; The Blue Diamond Plaster Lath production line is equipped ilAclllllEs r.' with-high gPeed. arYomatic machinery of latest design ----: " and is synchronized from begioning to end.

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W,!i#i'E*:t!!1..1ili,ir,,::.:|ffi l,; The 6nest materials and machinery are no better than the mea f;' who use them. Under standards set fot them by meo witb rer H l:T"?":11,18trfl?Bf*""tTHff.A',?,'i:i'*o,k".l

#, aided bv laboratory control methods, guard this long production line against imperfectioo.

The West Coast Lumbermen's Association has been sending to Hoo-Hoo Members the pamphlet "A Million Homes A Year Forever." This tells the dramatic story of r,l'hat private industry is doing to make sure the forests will always be capable of providing an ample supply of lumber for America. One paragraph in their letter says: "It is important to tell this story whenever and wherever we can, and your help will be appreciated." The letter offers to sen'd whatever quantity of the pamphlets that can be used, without charge. Copies of the pamphlet can be obtained by writing the West Coast Lumbermen's Association. 1410 S. \A/. Morrison Street, Portland 5, Ore.