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Fig. 1. Sample 42, Globigerina ooze, southeast Pacific, depth 2953 

 meters; 0.25- to 0.12-mm size grade; entire shells of immature 

 pelagic foraminifera (CaCOs content of sample, 93 per cent) 



Fig. 2. Sample 29, Globigerina ooze, south- 

 east Pacific, depth 1089 meters; 0.25- to 

 0.12-mm size grade; mostly entire shells 

 of pelagic foraminifera (CaCOs content of 

 sample, 94 per cent) 



Fig. 3. Sample 17, ferruginous (volcanic) 

 Globigerina ooze, southeast Pacific, 

 depth 3098 meters; 0.25 -to 0.12-mm size 

 grade; entire shells of immature pelagic 

 foraminifera, a few benthonic foramini- 

 fera, shards of basic volcanic glass 

 (CaC03 content of sample, 74 percent) 



169 



