58 



BULLETIN 370, U. S. DEPARTMENT OF AGPJCULTUEE. 



en o © 

 ^ o o 



'SO 



ft 



\ O CO 4M CO -^ CO CO Tt* W i-l -^ .-H 't^ji 



cct>.-^r-ooMcoc^i>.i©co»o 



C^OcO<MOOr^ ^H •* Tji CO Oi 1-^ O 

 CO'*cioi'-Hr^00Oi-<rc4cO«D'^CO 



Ci O <N ■* lO t^ O rrOr^OoOCDO 

 TrO"^'^CO>JOrr^^"^ci:CCSiCci"^ 



*rT'oocO'^cococii-iM'i-((Nas"tii>-r^ 

 ;ioc30oc<Jco<MOco»-H-r'MO-^'-HCO 



•C^cOcO&OC^(M»OGO»OLOO:iCCtN03'-0 

 CO lO »0 CO r^ CO !>• <:0 CO O 'O CO "^D »0 CO 



.Bo 



to a 



p o o 

 mOgMOOgMOSOoStoM 



§ o 3 



So 





^'3"S''5 



3 ^^t. 



o c; • >-i^^ ■'3.— 



. ^ el's • '-^ 



— '^ • 13 13 <e 





c«qt~^cn>c^cocoiOOi-^'rrcot~*cor^co 



t^r-^tOcOt^QCCNiOiOcOL.OiCCi'-'yD 



ccOcocofOco-^rococoGCX'cot^-r 

 co'«'^'*^'^'^'<»'^'^oooo»oeoco 



Ir^CO lOlOWS-rrOSOLOOCOCDCO 

 1-H CO ^_ <N t^ .-( <N rt^ C5 O OJ 



C^C^ COtHWC^CO (Mt1»-I 



GOOOt^Ot^OCcOOcDQO t-^r^t-^ 



t^t^OOCO Tt-GOOiCO CO Tj< CO -^ 

 (N C^* CO Tjl __^0 O lO c3 ^^1-H oi Oi oS 



OGXO'X Oit>0000 -^tHCOC^ 



O00O(NMm<Nl^rf 



cc«Mt^(Ncccocao 



SS?^SS 





(N 



CO (N <M C^ 







lOrt 



00 

 CO 



rf(MiCGO(M{MC^IOCOCC 



cx t^ r^ o CO i^ i^ »o i^ o 



CO 







no>n 



O O O O-w- 





n 2 



o g ; 





1^ 



-OC3Tt<cD>OcOI>--T^OSOCO- 



00 O OCO CO C 



o CO cj ai o 1-- r 



■< "rr CO O I ■- CO 



