166 ME. F. CHAPMAN ON FORAMINIFERA 
N° OF PERCENTAGE OF FORAMINIFERA DEPTH IN 
SAMPLE 10. 20 30 40 DOp OO mEaHO, 80 90 FATHOMS, 
Ss aS) 
yy 
i=) 
S 
(or 
SS 
co 
ey 
es 
NS 
i 
~ XS ~ ~~ 
PERCENTAGE OF FoRAMINIFERA.—Readings to the left of the zigzag 
line give percentages of Foraminifera; to the right, percentages of 
Halimeda and other miscellaneous organisms. 
