r&A 
189 
■A 
.'■isU 
t/x - L yj (oCXSl. ^JXy^yV^yyXy^A^yj 
C >■-£ -^° flbi. 
1 
// 
(c y^^Uyy AtfrtAJt- J <-<■- > z :'■(£ t £,' ( ( < '(/ l-/^ d/.). / f /c< 
Ol\ 
[£&! / ;> r i/a Aaii /o a/''* -/. 
I :b^j /; tetrad At^vuxi c)f // 
U'rvlypC-J 
tk 
( \ x l - < <A< V 
t/ / ti^r j- i,. [\y\ Cb] (y)A. ( fiitf/tyly £ yjl ) < \A K 
it tf oji/;: 
lv h( A- < / 
i?,V rjT^ y'.yJ tS CJ , 
/r/7 ^ 
./i/w ^ .A^L* c ' / /rt zyr--y 
*tS 
%/^yyy' 
~^~ *c szrz-*? y 'A y 
A>$A 
7 ^ 
V 
