DECAYS AND DISCOLORATIONS IN AIRPLANE WOODS. 51 
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Pine, southern yellow: Blue- Spruce: Compression failure 
Stain. Sap woods es 28 caused by—Continued. 
sugar: Blue-stain, sapwood_ 29 Steam pending s-2= =.= ss 10 
Brown-stain, sapwood__ 24 A WES Uae i ee ee 1) 
DirbtsireakSs ses se fe 16 | Spruce: Compression wood_____ 9 
TESTU SOB 0 Vee cn oa ge i 24 Prueh PoOeketse. = sos a 12 
Pink heartwood. = 2- = 15 | Spruce, Himalayan: Red heart- 
Orange-red stain___-___ 24 NiCOXO10 |: eect mea api Nags NN RNa EEL ne 16 
western white: Blue-stain__ 28 | Spruce, red: MRed-rot, heart- 
western yellow: Red-brown SY 0 ba a A le a I Ee 34 
rot, heartwood______ 35 | Spruce, Sitka: Blue-stain, sap- 
Red-rot, heartwood ____ 34 WOO Cis Se RS ee ES aah 28 
white: Blue-stain, sapwood_ 29 Decay during shipment____-_ 31 
Brown to black blotches, Reddish brown-purple cclor, 
COOMDUENS= eve De Ize Trigea) ov Fay aves ae ia pied Se heh a2 19 
DD inctestredks =e es Seek 16 Reddish brown rot, heart- . 
Binkwheartwood #2220 =. 15 NVOOGi eye Me sae ten eae YE Yh 35 
Redwood: Brown-rot, heart- Redy heantwoods =.) et. 16 
OKO 0 | ae ON eS a les CO 36 Red-rot, heartwood_-__...___ 34 
Spruce: Compression failure Red-stain, sapwood —________ 28 
caused by— Spruce. white: Red-rot, heart- 
Haulty assemblivec: 22222 ale WVOOG >= ir Ae eee e apes eins ae 34 
OFS NT in ser ele eR 11 
