MACKIE— FIRST TRACES OF THE SUCCESSION OF LIFE. 
349 
.3 
C3 
1-5 
03 
1 ^' ■§ O 
O t» O O 
si 
-3 
O H 
W O CO 
3~ 
M o c3 be 
^3 S ;r .3 
§ S S 
>^ 3 
PI 
^1 
H 
O 
P 
Ph Ph <1 
<1 
Q 
o 
i 
EH 
i 
^5 
b 3 
VOL. II. 
E E 
