24 



BULLETIN 77, U. S. DEPARTMENT OF AGRICULTURE. 



•6 



3 



§ 



.a o a 



2S5 



OHOOOHOOOO 



coouoooeoH 



OE^OHE-i ^EhEhH 





WSMm 



OOiOMHiflNVHO 



8*ogC'i»ocsu30>*ot^-g< 



*VWN«NiOCOCOf 



) C$ t^- CS t^ t>- Oi lO < 



ooooooot^ior-Nt» 



■° « 52 fl 



V" » 03 U 



w NOOajo«5«!0«)«! 



aSNOOHlOOOniCBNtON 



10100010010U50C 

 OOlOCCniONNNM 



SOMOONOOO 



■ es cocoes csroe^eocooi 



NMe^cocorotNcscqN 



NNNNNHHNN 



■8°! 



a 2 



OOOQOQOiOOO 



■ ^V«0^f"^^iO(0»0>0 



■"lO-TiCO^iOiOPOT^CO 



OOQOOiOOOO 

 NOCOOWOhNM 



.OOiCOOMOONOOO 

 i(OOCSMH>CfOHOCD 



gO»OQP50iOCCQO 



>©© 00 IO00 



> io io io t^ ec 



)eOiOiOW5iOiO*OiO 





cooiost^ooooi^cqoo 



JMQOOMOiOOO 



S 1 ! 



.OOMOOQQ'ONN-* 



CO^D t 



. <m H^CO«5COOu5nNCO 



r-(t^cooaicO'<^'^csiTti 



pa <£>' 



COCOV>ONH»OlONH 



531 



la: 



,Tj«i-it>.eooocO'- ,c< ioooo 



OCOOOOOCOHNdiOO 

 HHHrt«NHH« 



^HHHHHrtrtrt 



g^.3 



COOS'S 



ONVHtOCDO 

 ■VW ■* iO 'V M 



(DOCOWOMCOHNOO 



go^oogjooo.gjg 



g-ssa'S 



<!9 -S 



''•0 , »"000>OMNffiM 

 H^ 



NMMOOOOOWHC 





00 00 ■* in a !D t»00 3< 

 00C0»Ot^t^C0*O000i 



e 



<CONrtrtlOOJOOmO 



5t~- COtOtpi^ CS 



UtONIOtO 



SMNOIWO 

 o«o<nc<5© 



lOrtlOOOWWOONN 



tci-ioooot~e^i-ii-icc 



3001 

 •V 00 



ooj>tnoi«ooNH 

 coco^co-^oo-* 



NOOCJCDONtDNW 

 IOCOONOJ'* VOO! 



••I 



S8 0u 



HNW*»0<ONCOO>0 



i-HCScc-^tocor-cooic 



«— (CSC3^f»OCDt^*00Oi 



.9 



