UTILIZATION OF ELM. 
33 
Si: 
: O O © 
© l- u- 
_ o o © o o 
10 "3 o o o o 
o © © © © © © >C iC lO © o C ! 
i-i © en t^ ci t> ©° <m' cd ei o> T-i 06 ( 
i eo os oo os «0 oo «o o 
OOOOOOOOOOOOOO 
>©< 
© © © © lO lO LO © © © © 
©cc©©©©©©©©©©© 
©©©©©©© u-L-Lr:©©©© 
t^ © l~ cc i.- re c-3 c: cn or io r~ <M © 
tN<MCNieN(N<NOar-<(Ni-i'-i^<M<N 
©©©©©SS^©©©"© 
OOOOOQOOOOOO< 
L- © © © © 
i— i © © r~ © t^ © CM © M © — : 
©©©©©©©©©©©©©© 
© © © © © © © IC ifl kC © © © © 
: y t - l-~ t^ 1/5 ' - _ 
l(MCN<NCN(M(MCNIC<i 
■* © r~ © © © 
(N <M ^ iH <M CO 
©©©©©©©©a©©©©© 
© © © © ©©©"-.- u- u- © © © © 
55 
■L^MeccNXNOOiONO- 
tC lC UO lo lO lC lO ' 
i lO ■* Tf ■* iO lo N 
CO<Nrt©-H©0C-*r^-^^-IC<D©©GO 
£ 0*03 3 C3 O z4+i 3' 
S 
f 
51 
2 -a 
rt PI 
,-Tc3 
■s5 
ceV' 
I" 3 
P^ a> 
