22 



BULLETIN 656, U. S. DEPARTMENT OF AGRICULTURE. 





§ 5° g eg 



h ga ~ 



A£> 



>■» *- 2 "^ o * Q 



i 



as o 



< C > M — ^ 03 



'3» .a 



£ 



B 



o 



Q 



CO-l'OOOWOOWOOOOW-i'NOOCM-l'O CDC^tPOOOOOOOOO-^ 



-? ^ *o ~r c? co iniQ*H CO ^Sg3 cone4 cc)o6t-!c> e$ r-ic-rc^fcrQ-^ocaicDr^cs'-o 



<2cMINMC5cJ|CSCSC0COCS(NCS0OO3IMO»CCP4-ll NMNNN«Nn«MN1'n 



g(N«MWWCJ(NncO(N(NW?imOHNTO<Nrt COC^CStNCSClCMOaoOC^C'JCOCO 

 <3 



gi<^^'^'t'i"i , "0!D'i , i"i"r©'OioNici- »o ^ ^* *i* -^ -^ -j* if? to •* m t~ '.o 

 e 



o 



o 



e -h 



o 



EhOOOOOOO)h030)OiOOC3)01010)0) wOOOO>-<0000©©0 



to 



o 



OOOOOOMOO)^N(NO»OCO ( £>'*->tNcC(NPO ONONCON«iOO'fNN(N 

 ^ifiiOiO^iriiOcDOONtDcOOaJcDcDcOCOO cO^OcdcdcOcOcOcdt^cOcOcD^d 



dOOONOOOeOH«OtC'«NCOif(NCOHN 05NO00NN1N10OU5NNC0 

 1— iOti5*OCDCDU3cOCDcdt^:0'cD^cOsOCo'o<D , cO lOtDsDcOcDcdco'co'cDco'cOcO'©' 



ffOOCNCOOO«ONrHCCNO^OOO^cD't© OlMrtWMCO«W«OCOr-tiON 



© 



C^'iOH«ON*teOOl>.OJi0000001iHiOOi'Hl'. ^l^cDcDOSl-'-OiOOS^C'SoOiO 



g co co co tjh co co ^ ^ Tii io io xj! *o «o <© co cd co ed »c to iq so »o «c r .o cc co co t^ cd :d 



C CC iO W N CC iO W-D CC CC iO CC. 00 CC O id O ^h O tDI-OiOOCCOJi^OCO'-il'iO 



gcococo^c6co^^^^'c--^ioio'ocDr^cdcc3 io io io -is 'i >o ui -xf © to n to -i 



Is *: O N OJ N iC I - '/■ ?-J ■: W ?■) CO H ^ N h h H O ^ ^-t ,-t ,-h CN <M t-h ,-t ^h CM ^ © O 



■- ^r 



2^05<C<NrtH00iO>0CDNO00iOOiOHC«;Cft CDOCftH'fiCai-fNHCO'f'f 

 ft'tCOO^lN'tncCOlNfNOCOOQONOW (DCt>N00tai(N06iON(MCOC0 



gCDCDCOC^cDCC5t^ t^ r^ cc t/j ts ci oo cc os os X os cc s cr" os os x* os oi ©' OJ © Os os 





n 3 Q 



3n g 



■U "t) fl E Q; « « 



o C •.■> <s c c co 



03S 3? r „c >s 8 



0:2 -Si 33 * 



»i 



:o 



■co 



ss 





8 B ts&Se*8 



i-tfi 



"St. -^ d 

 S^f-I g.2 p.g 



c > d 



