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ices, of the Commerce Department in cooperation with the. industry. Originally issued in 1924, thil is the fifth rev1s10n.

Single copies of the new' list of certified grading and grade marking-organizations are available on rlquesifrom the American Lumber Standards Committee, 2138 p Street. N.W., Washington 7, D.C. Additional copies are l0 cents each. Entitled "List of Certified Agenciesj' the publication is da^ted February 10, 1961, and, in addition to-giving the certified agencies, it includes facsimiles of thJ ,,offi1iaI,, grade marks.

Thes.e certified_organizations include those publishing the recognized grading rules for each species of softi'ood lumber, as well as the agencies which are qualified to inspect, grade, and grade mark it. Such grade- marks are widely utilized in the industry, and all framing lumber and boards going into FHA insured homes, and al-l lumber and timber purchased by the U.S. Government under Federal Specifications is required to carry these marks. The 1960 production of this lumber was about 28.6 billion board feet, according to industry estimates.

Simplified Practice Recommendation R16-53, which specifies the standard sizes, classifications and definitions of softwood lumber, is available from Superintendent of Documents, U.S. Government Printing Office at l5 cents a copy.