Zr EE 
a eier EE 
= = A IE =} PTR Ar 
Se > Ss = = = graz Sas = = 3 Sc 
/ SS Ss = Ss = (Seles ft eee ae 2 27 Gab € 
E ae <= 2s Ss Ss SS Sees ec 1 
2 2 D = saz 
Far a oe ee a Y Ee LAT fs 
pS en e = Ep BP o 3 5 -L J S g a a ` 
3 es Xs3 SS ZS SS Se Ss 2 za Cs Be 
= = EAS ee (SS 
= ZS E FS E er: 
Sf LE S 
IVERSITY, 
MA USA 
H 
d 
MCZ LIBRARY 
E 
HARVARD U! 
CAMBRIDG 
