Bulletin No 8 Division of Foresfrv 



Plate XI. 



CRUSHING STRCNGTH ENDWISE AT 15% MOISTURE; IN LBS. PER SQ IN 



I'hc Plotted ^^pfnts arc t/ir avcrcL<^es 

 of' a/l tests on\ .stic^:s /lat'if?^ 

 the ,sa/ne s/jeciOi^ ^fu\-iO/ . 



The nccompa/u^in^ f\<fure'S tn(iu:a.t.e 

 t/ie number o/' Aeoulta ai-eraefed 

 Ln eac/i cci.se. 



Fig. 1.— Diagram .skuwiug the tiushiiig .sti-ength ciulwisr. and llir spt-cilic gravity or wt-iglit, wUi-u reduced to 



15 per ceut moisture. 



f.//( 



Tree ruiml/fr\s 

 fjlotlerf in -enu n 



20 



SPECIFIC GRAVITY 



Fig. 2. — Diagram sliowiug tin' ahseiire 



of auy material change iu specific gravity, with changes in moistvrre, as 



a result of seasouiug. 



