28 



BULLETIN 676, U. S. DEPARTMENT OF AGEICULTTJRE. 



1 



ajnire; ' jo ao^jjng 



•m -bs 

 lad 'sqi 



•JCTp'DJ 



ajniTCj jb 90'Bjjng 



•m -bs 

 jod "'sqq 



03 

 O 



ajniTBj ' JO aoBjjng 



•sqi 



ajnjrej jb 90Bjing 



■sqi 



S3 

 01 



•imjnaSn'B; 

 a.miTCj JO aoBjmg 



•m -bs 

 jod'-sqq 



•IBipBj 

 sjnjrej jb aoBjang 



•in -bs 

 .lad'-sqq; 



Hardness: 

 load required 



to embed a 

 0.444-inch ball 



one-half its 

 diameter. 



■aoBjms jBnnaSuBx 



•sqa 



•aoBjins i^mp^y; 



■sqq; 



•90'Bjjns pna 



•sqi 



'urei3 6% jBinoipnadiad uoissajdxnoo 



•m 'bs 

 jad'-sqi 



Compression 



parallel to 



grain. 



•iC^TOT^s'Bp JO snpipoH 



•m 'bs lad 

 •sqijosooo'i 



Stnqsnjo rannrpcBj^ 



•m*bs 

 jed'-sqi 



•ijirarj 

 oT^sBia %'B SS9JJS laqj^ 



•in-bs 

 jad "sqi: 



b2S 



S !=> 

 P-O 



a?- 



HH O 



•a.mn'Bj ajaidnioo Sm 

 -snBo'dojp JO ^qSian 



•saqoni 



•jiiu![ oijs'Bie oj 3[jOAi 



•m -no jad 

 ■sqi t[oni 



•laToiiSBja JO snpipopi 



■m -bs .lad 

 •sqfjo sooo'T 



OTjsBja JB ssa'.ijs isqi^ 



•nt -bs 

 jad' "sqq: 



.s 



o 



1 



•2tJ0Ai IBJOJQ 



•m -no lad 

 •sqi qoni 



•pTOt 



■nrmmxTJTii oj ^t-io^w^ 



•nr -no jad 

 •sqi ifoni 



•JTUITl OTJSBjg OJ JfJOAi 



■ni -no jad 

 •sqi qoni 



•jfjjoTjsBia JO snrnpoji 



•m -bs jad 

 •sqfjosooo'l 



•a.mjdnijo sninpoi\[ 



■m -bs 

 J9d "sqq: 



•jnnn 

 OTjsBp JB ssa'jjs jaqj^ 



•UT •bs 

 J9d'*sqT: 



§ d d 

 o S o 



Mo ''3 



•S hi 



•IBijuaSuBx 



0, g 2 



•IBTpBa 



•9ratiiOA ui 



• •^u3:}uoo 9jn^stopj 



•jnao jaj 



• jsa^. JO ara]^ ^'B ainn[OA 

 no pasBq '^.rp-uaAO '^ipvBiJ? ogioadg 





•laqrann aonaiaja^ 







1^ 



O 



■ 1 



'3 

 1 





m 

 o 



pi 

 w 



^ o 

 ;; ^' 

 ^ I 



^^ 



^^ 



wo 



raw 



pip 



o 



■< 



O 



o 







ooo 



g 





o^ 







•^ CI o I 



6i 







03 1-- (M ; 









oo cq I 



CO Oi »-l • 



CO 







SI s i 



S 







(M ffi 00 I 



CO 02 IM ■ 









OiO. 00 I 

 rt rH O ■ 



cs 







2| 1 i 









■^^ <3^ • 



C-1 







iM^ a '• 



1-1 »H rH t 



o 







t^CO lO I 

 rtCO CO • 



a> 



(N 



OC55 lO I 

 CO —1 CO • 



00 



Ol 



SS 1 : 



^ 







03C0 .-1 I 



—100 (Ml 



CD 







i^ g j 



lO 







CO O rH I 

 <M CO M • 









CO CO CO * 



CO 







cooo o • 

 OOIM in . 



2 







O O (Mi 



- 







CO lO o • 

 Tf (M O ■ 



2 ■ S 



OMO rj< ; 



a> 





oS <M ! 



00 



CO 



5s s i 



r^ 







<M 



03 



o ! 



CD 







02 

 00 



g ; 



"3 







o 



CO 



g : 



^ 













4 



CO 













IM 



S 



N 



o 1 



- 



1 



W PI 



o —.2 2 



■^ O 



3t 



H |X> '^ 1- 



a -S £ 



.1 u- Or>- 



l»^-' 



> 



-< 



73 



il 





