22 BULLETIN 656, U. S. DEPARTMENT OF AGRICULTURE. 
^ 89 ^ 
^ — t; ■« o " ~^— - a> , 
■*ONKO**iC»'! l NNOKSO«NO 
'*o_,v ci 
«Sao Ota 
«>?oxf)y.xcccooc-MXSN'to 
CC(N-#©0©0©00©0-?< 
> t* X si CD l^ CN CO 
I CN CN IN CN CN -3- CO 
<zg 
gc^cNcNi^cNCNCNcocoeNcNCNCNcocNcNcocNco 
to 
"^3 
►H r3 C3 O 
•5 E fl iirtuO 
. _"#*5PCN^--iOX 
ccci>i-cxct-r. 
t^ CD tO SO t- CO CD X t^ t^ t- S! OB 
-S— 5 - w B ec ° 
ON*N«^t-.XrtNfs-ti-»Tfe!XX 
-ococccr.-;r.r.soso)00 
■a-5 
a 
i* 
c 2 
■eo 
§s 
ONONONX^ifTfOt^NNNM'fNM CO-c*-<tlT3<iOT}<-<f<-<J<u5©.<j<io-^< 
«XXN3>»'<l'Nf)OL'3M!0'<i ( '<)'NMNrt 
ti. id id id bo >d id cd° cd cd t> cd ed cc : co cd' cd to to cd 
cdcdcocdcdedcdeoficdcdcdcd 
Oi Oi-O0 CM O 00 CO i-l CO O CO CO «>• CO -* CM CO t-I <N 
^!idididccccidcctdcct>tctdedtdcdcccdcdcd 
ONOXNNMiOOiflNNM 
idtdtdtdcdcdtdtdcdcdtdtdcd 
stNL'jetfiOmcNTr'tSTfO^N-HXNl.OO 
gCXNXKKO^rtXNOHOXrtt^O 
gCO^CNCNCSNCO*CSCO^CSCO^CO^CNc4c4tN 
rtOtOOOlW « iO to *M CM MS (O 
o<Mi-icocoeococ4>ocoi-iiot> 
cocococococococococoeotNiN 
1-11 II l! 
ic n ■* xmo l- n x cc l: i" r m cr x ■ 
g -J- 1-1 — CO t- ->* CO ■ iC t^ ©, l- X X OS — I 
gcocoM^coco-^'^-^iO'-i-^u-iuicc: 
cr.-f-c:?:c---'XMrtrt 
ic t^ ® c » n c l-: c ^ n x o 
id id id cd us id td to to cd r^ to ed 
|a 
>^OCOXX!Oh-'C5M( 
co io cn t^ x uo co cd x x lo : 
co co ci -r co co ts- —• -r <-- i-o -c- >-~- m cd co r~ cd cd 
OTjOhcO CO l> 
id id id to cd id id to cd to t> co cd 
I Kg 
NNXONOMC^CCCCrC-CCCM'-'CON 
i-vIOnc r~iot-~xcN>-ococNco^^-iCN^^-*© 
« 8 _3 
— © w 
o ft 8 
fj — Ci I C-) CO — X Lf. i- cD t- CXCOiOHMO 
g^eootON^cococnNMooooicAONtocM 
g to cd CO t^ CO CO t^ t^ t-^ 00 x t^ ci X X ■ OS si x si 
'©©^-*iO©— 'tN-^CD-^-cM 
00 X - X ci ci X - si ci © S3 © oi < 
o 
<N CN 
CO :n 
c-5 
