24 
BULLETIN 448, U. S. DEPARTMENT OF AGRICULTURE. 
CO 03r^J 
^ © >> 
gM,ff 
^2£>< 
■■§0 So 
"g R Jo .2 ^. 
.a o-3 S.20 
ft 
© S' -1 
gatswg 
©© S So 
•£ c3 i-H o; — 
±J -t^ 1-5 «w 1^5 
2 a u o 
,_, © oxt 
2 T 2 ® • 
03 t! S3 cl OT 
p^ 2-H3 8 
^3 xS S^.2 
^71 ate 
8^ 5 
* "Si 
>7 © 
I" a 
+3 © 
X73 
©^3-3 
£ 03 © 
©ts 
+a © 
-t- t-i 
1 X 
fc* 
B 
■d 
Tl 
y, 
u £ 
© 
2^ 
■a 
a © 
1 
r/i 
St) 
O 
as 
x 
d 
^ 0J 
© 
c3 
©0 
© 
B 
i J !4 
a 
« 
©I— I 
g?TJ£ 
©.2 X 
"* o © 
gjf 
8°*| 
£2© 
a © © 
■o a 
§0 
P(T) 
.33 
a.s& 
►4 2 
i 
« c3 
© co 
8? 8, 
tj'S « 
03 ©^ 
te 0! 
is 23 
I'm jj o o 
ft- 
P.2^-2 
til 
5 x B a S . 
lag ^-2 
<l03g^o 
S3 
O 03 
6 
W, 
6< 
o 
© © «• o 
S3 +3 fe fl 
.-£ ."S 
" ~ *& 
W W K,a 
-©•©■©■©.si's 
o 
P o 
'O © •■> 
© b£1d iT 
^ fl © © 
C3 03 " £ 
© tflw 
03 fl,3 t>» 
la 
O.S"o3 
o a 
00 
