Illinois Society of Architects · Chicago · leaf 445
ll be considered common lumber. 12. Two general classes shall be recog-nized. The first shall be suitable for use asa. whole for purnoses in ■^•hich surface co\--ering or strength is required. Defects andblemishes permitted in this class must besound. The second class permits verycoarse defects… … /^
Architecture · Building · Architects
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
